69942631 has 8 divisors (see below), whose sum is σ = 76364928. Its totient is φ = 63531000.

The previous prime is 69942623. The next prime is 69942643. The reversal of 69942631 is 13624996.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 69942631 - 2³ = 69942623 is a prime.

It is a super-2 number, since 2×69942631² = 9783943262404322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69942031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18166 + ... + 21676.

It is an arithmetic number, because the mean of its divisors is an integer number (9545616).

Almost surely, 2^69942631 is an apocalyptic number.

69942631 is a deficient number, since it is larger than the sum of its proper divisors (6422297).

69942631 is a wasteful number, since it uses less digits than its factorization.

69942631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5333.

The product of its digits is 69984, while the sum is 40.

The square root of 69942631 is about 8363.1711090949. The cubic root of 69942631 is about 412.0159115827.

The spelling of 69942631 in words is "sixty-nine million, nine hundred forty-two thousand, six hundred thirty-one".