73690931 has 2 divisors, whose sum is σ = 73690932. Its totient is φ = 73690930.

The previous prime is 73690927. The next prime is 73690957. The reversal of 73690931 is 13909637.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73690931 - 2² = 73690927 is a prime.

It is a super-2 number, since 2×73690931² = 10860706623293522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73690961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36845465 + 36845466.

It is an arithmetic number, because the mean of its divisors is an integer number (36845466).

Almost surely, 2^73690931 is an apocalyptic number.

73690931 is a deficient number, since it is larger than the sum of its proper divisors (1).

73690931 is an equidigital number, since it uses as much as digits as its factorization.

73690931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 73690931 is about 8584.3421996097. The cubic root of 73690931 is about 419.2483362182.

The spelling of 73690931 in words is "seventy-three million, six hundred ninety thousand, nine hundred thirty-one".