69490902 has 64 divisors (see below), whose sum is σ = 159989760. Its totient is φ = 19958400.

The previous prime is 69490901. The next prime is 69490903. The reversal of 69490902 is 20909496.

It is an interprime number because it is at equal distance from previous prime (69490901) and next prime (69490903).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69490901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69627 + ... + 70617.

It is an arithmetic number, because the mean of its divisors is an integer number (2499840).

Almost surely, 2^69490902 is an apocalyptic number.

69490902 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 69490902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79994880).

69490902 is an abundant number, since it is smaller than the sum of its proper divisors (90498858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69490902 is a wasteful number, since it uses less digits than its factorization.

69490902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 69490902 is about 8336.1203206288. The cubic root of 69490902 is about 411.1269846372.

The spelling of 69490902 in words is "sixty-nine million, four hundred ninety thousand, nine hundred two".