69985937 has 4 divisors (see below), whose sum is σ = 79983936. Its totient is φ = 59987940.

The previous prime is 69985919. The next prime is 69985963. The reversal of 69985937 is 73958996.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 69985937 - 2⁸ = 69985681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69985337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4998989 + ... + 4999002.

It is an arithmetic number, because the mean of its divisors is an integer number (19995984).

Almost surely, 2^69985937 is an apocalyptic number.

It is an amenable number.

69985937 is a deficient number, since it is larger than the sum of its proper divisors (9997999).

69985937 is an equidigital number, since it uses as much as digits as its factorization.

69985937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9997998.

The product of its digits is 3674160, while the sum is 56.

The square root of 69985937 is about 8365.7597981295. The cubic root of 69985937 is about 412.1009292586.

It can be divided in two parts, 6998593 and 7, that multiplied together give a triangular number (48990151 = T₉₈₉₈).

The spelling of 69985937 in words is "sixty-nine million, nine hundred eighty-five thousand, nine hundred thirty-seven".