75920497 has 2 divisors, whose sum is σ = 75920498. Its totient is φ = 75920496.

The previous prime is 75920491. The next prime is 75920567. The reversal of 75920497 is 79402957.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63218401 + 12702096 = 7951^2 + 3564^2 .

It is a cyclic number.

It is not a de Polignac number, because 75920497 - 2³ = 75920489 is a prime.

It is not a weakly prime, because it can be changed into another prime (75920491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37960248 + 37960249.

It is an arithmetic number, because the mean of its divisors is an integer number (37960249).

Almost surely, 2^75920497 is an apocalyptic number.

It is an amenable number.

75920497 is a deficient number, since it is larger than the sum of its proper divisors (1).

75920497 is an equidigital number, since it uses as much as digits as its factorization.

75920497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 75920497 is about 8713.2368841895. The cubic root of 75920497 is about 423.4346048385.

The spelling of 75920497 in words is "seventy-five million, nine hundred twenty thousand, four hundred ninety-seven".