69497738 has 4 divisors (see below), whose sum is σ = 104246610. Its totient is φ = 34748868.

The previous prime is 69497731. The next prime is 69497741. The reversal of 69497738 is 83779496.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66210769 + 3286969 = 8137^2 + 1813^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 69497738.

It is not an unprimeable number, because it can be changed into a prime (69497731) 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 as a sum of consecutive naturals, namely, 17374433 + ... + 17374436.

Almost surely, 2^69497738 is an apocalyptic number.

69497738 is a deficient number, since it is larger than the sum of its proper divisors (34748872).

69497738 is a wasteful number, since it uses less digits than its factorization.

69497738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34748871.

The product of its digits is 2286144, while the sum is 53.

The square root of 69497738 is about 8336.5303334181. The cubic root of 69497738 is about 411.1404654039.

The spelling of 69497738 in words is "sixty-nine million, four hundred ninety-seven thousand, seven hundred thirty-eight".