75432971 has 2 divisors, whose sum is σ = 75432972. Its totient is φ = 75432970.

The previous prime is 75432949. The next prime is 75432997. The reversal of 75432971 is 17923457.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75432971 - 2¹⁴ = 75416587 is a prime.

It is a super-2 number, since 2×75432971² = 11380266227773682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75432901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37716485 + 37716486.

It is an arithmetic number, because the mean of its divisors is an integer number (37716486).

Almost surely, 2^75432971 is an apocalyptic number.

75432971 is a deficient number, since it is larger than the sum of its proper divisors (1).

75432971 is an equidigital number, since it uses as much as digits as its factorization.

75432971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 38.

The square root of 75432971 is about 8685.2156565050. The cubic root of 75432971 is about 422.5262913275.

The spelling of 75432971 in words is "seventy-five million, four hundred thirty-two thousand, nine hundred seventy-one".