69420870 has 48 divisors (see below), whose sum is σ = 189998640. Its totient is φ = 17537472.

The previous prime is 69420859. The next prime is 69420881. The reversal of 69420870 is 7802496.

It is an interprime number because it is at equal distance from previous prime (69420859) and next prime (69420881).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 18589 + ... + 22008.

It is an arithmetic number, because the mean of its divisors is an integer number (3958305).

Almost surely, 2^69420870 is an apocalyptic number.

69420870 is an abundant number, since it is smaller than the sum of its proper divisors (120577770).

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

69420870 is a wasteful number, since it uses less digits than its factorization.

69420870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40629 (or 40626 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 69420870 is about 8331.9187466033. The cubic root of 69420870 is about 410.9888287940.

The spelling of 69420870 in words is "sixty-nine million, four hundred twenty thousand, eight hundred seventy".