72694051 has 2 divisors, whose sum is σ = 72694052. Its totient is φ = 72694050.

The previous prime is 72694049. The next prime is 72694067. The reversal of 72694051 is 15049627.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72694051 - 2¹ = 72694049 is a prime.

Together with 72694049, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 72693998 and 72694016.

It is not a weakly prime, because it can be changed into another prime (72694021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36347025 + 36347026.

It is an arithmetic number, because the mean of its divisors is an integer number (36347026).

Almost surely, 2^72694051 is an apocalyptic number.

72694051 is a deficient number, since it is larger than the sum of its proper divisors (1).

72694051 is an equidigital number, since it uses as much as digits as its factorization.

72694051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 72694051 is about 8526.0806353212. The cubic root of 72694051 is about 417.3492369220.

The spelling of 72694051 in words is "seventy-two million, six hundred ninety-four thousand, fifty-one".