72694087 has 2 divisors, whose sum is σ = 72694088. Its totient is φ = 72694086.

The previous prime is 72694079. The next prime is 72694117. The reversal of 72694087 is 78049627.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72694087 - 2³ = 72694079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72694067) 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 as a sum of consecutive naturals, namely, 36347043 + 36347044.

It is an arithmetic number, because the mean of its divisors is an integer number (36347044).

Almost surely, 2^72694087 is an apocalyptic number.

72694087 is a deficient number, since it is larger than the sum of its proper divisors (1).

72694087 is an equidigital number, since it uses as much as digits as its factorization.

72694087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 72694087 is about 8526.0827464903. The cubic root of 72694087 is about 417.3493058161.

The spelling of 72694087 in words is "seventy-two million, six hundred ninety-four thousand, eighty-seven".