69434391 has 16 divisors (see below), whose sum is σ = 99864576. Its totient is φ = 42658656.

The previous prime is 69434383. The next prime is 69434411. The reversal of 69434391 is 19343496.

It is not a de Polignac number, because 69434391 - 2³ = 69434383 is a prime.

It is a super-2 number, since 2×69434391² = 9642269307081762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69434291) 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 15 ways as a sum of consecutive naturals, for example, 32626 + ... + 34688.

It is an arithmetic number, because the mean of its divisors is an integer number (6241536).

Almost surely, 2^69434391 is an apocalyptic number.

69434391 is a deficient number, since it is larger than the sum of its proper divisors (30430185).

69434391 is a wasteful number, since it uses less digits than its factorization.

69434391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2942.

The product of its digits is 69984, while the sum is 39.

The square root of 69434391 is about 8332.7301048336. The cubic root of 69434391 is about 411.0155096236.

The spelling of 69434391 in words is "sixty-nine million, four hundred thirty-four thousand, three hundred ninety-one".