69116431 has 2 divisors, whose sum is σ = 69116432. Its totient is φ = 69116430.

The previous prime is 69116429. The next prime is 69116503. The reversal of 69116431 is 13461196.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 69116431 - 2¹ = 69116429 is a prime.

It is a super-2 number, since 2×69116431² = 9554162068355522, which contains 22 as substring.

Together with 69116429, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 69116393 and 69116402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69119431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34558215 + 34558216.

It is an arithmetic number, because the mean of its divisors is an integer number (34558216).

Almost surely, 2^69116431 is an apocalyptic number.

69116431 is a deficient number, since it is larger than the sum of its proper divisors (1).

69116431 is an equidigital number, since it uses as much as digits as its factorization.

69116431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 31.

The square root of 69116431 is about 8313.6292315691. The cubic root of 69116431 is about 410.3871635344.

The spelling of 69116431 in words is "sixty-nine million, one hundred sixteen thousand, four hundred thirty-one".