69838431 has 16 divisors (see below), whose sum is σ = 106180704. Its totient is φ = 40449024.

The previous prime is 69838423. The next prime is 69838451. The reversal of 69838431 is 13483896.

It is a happy number.

It is not a de Polignac number, because 69838431 - 2³ = 69838423 is a prime.

It is a super-2 number, since 2×69838431² = 9754812889083522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69838411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52006 + ... + 53331.

It is an arithmetic number, because the mean of its divisors is an integer number (6636294).

Almost surely, 2^69838431 is an apocalyptic number.

69838431 is a deficient number, since it is larger than the sum of its proper divisors (36342273).

69838431 is a wasteful number, since it uses less digits than its factorization.

69838431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105370.

The product of its digits is 124416, while the sum is 42.

The square root of 69838431 is about 8356.9390927540. The cubic root of 69838431 is about 411.8112038339.

The spelling of 69838431 in words is "sixty-nine million, eight hundred thirty-eight thousand, four hundred thirty-one".