72612047 has 2 divisors, whose sum is σ = 72612048. Its totient is φ = 72612046.

The previous prime is 72612017. The next prime is 72612073. The reversal of 72612047 is 74021627.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72612047 - 2⁶ = 72611983 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72612017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36306023 + 36306024.

It is an arithmetic number, because the mean of its divisors is an integer number (36306024).

Almost surely, 2^72612047 is an apocalyptic number.

72612047 is a deficient number, since it is larger than the sum of its proper divisors (1).

72612047 is an equidigital number, since it uses as much as digits as its factorization.

72612047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 72612047 is about 8521.2702691559. The cubic root of 72612047 is about 417.1922447814.

The spelling of 72612047 in words is "seventy-two million, six hundred twelve thousand, forty-seven".