72952403 has 2 divisors, whose sum is σ = 72952404. Its totient is φ = 72952402.

The previous prime is 72952391. The next prime is 72952409. The reversal of 72952403 is 30425927.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72952403 - 2¹⁸ = 72690259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72952403.

It is not a weakly prime, because it can be changed into another prime (72952409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36476201 + 36476202.

It is an arithmetic number, because the mean of its divisors is an integer number (36476202).

Almost surely, 2^72952403 is an apocalyptic number.

72952403 is a deficient number, since it is larger than the sum of its proper divisors (1).

72952403 is an equidigital number, since it uses as much as digits as its factorization.

72952403 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 32.

The square root of 72952403 is about 8541.2178873976. The cubic root of 72952403 is about 417.8430670093.

The spelling of 72952403 in words is "seventy-two million, nine hundred fifty-two thousand, four hundred three".