72962971 has 2 divisors, whose sum is σ = 72962972. Its totient is φ = 72962970.

The previous prime is 72962947. The next prime is 72962977. The reversal of 72962971 is 17926927.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72962971 - 2⁹ = 72962459 is a prime.

It is not a weakly prime, because it can be changed into another prime (72962977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36481485 + 36481486.

It is an arithmetic number, because the mean of its divisors is an integer number (36481486).

Almost surely, 2^72962971 is an apocalyptic number.

72962971 is a deficient number, since it is larger than the sum of its proper divisors (1).

72962971 is an equidigital number, since it uses as much as digits as its factorization.

72962971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256, while the sum is 43.

The square root of 72962971 is about 8541.8365121325. The cubic root of 72962971 is about 417.8632425034.

The spelling of 72962971 in words is "seventy-two million, nine hundred sixty-two thousand, nine hundred seventy-one".