70914631 has 4 divisors (see below), whose sum is σ = 74647000. Its totient is φ = 67182264.

The previous prime is 70914601. The next prime is 70914643. The reversal of 70914631 is 13641907.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13641907 = 457 ⋅29851.

It is a cyclic number.

It is not a de Polignac number, because 70914631 - 2²⁵ = 37360199 is a prime.

It is a super-2 number, since 2×70914631² = 10057769779732322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70914593 and 70914602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70914601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1866156 + ... + 1866193.

It is an arithmetic number, because the mean of its divisors is an integer number (18661750).

Almost surely, 2^70914631 is an apocalyptic number.

70914631 is a deficient number, since it is larger than the sum of its proper divisors (3732369).

70914631 is a wasteful number, since it uses less digits than its factorization.

70914631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3732368.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 70914631 is about 8421.0825313614. The cubic root of 70914631 is about 413.9157471279.

The spelling of 70914631 in words is "seventy million, nine hundred fourteen thousand, six hundred thirty-one".