75981923 has 2 divisors, whose sum is σ = 75981924. Its totient is φ = 75981922.

The previous prime is 75981889. The next prime is 75981929. The reversal of 75981923 is 32918957.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75981923 - 2¹⁶ = 75916387 is a prime.

It is not a weakly prime, because it can be changed into another prime (75981929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37990961 + 37990962.

It is an arithmetic number, because the mean of its divisors is an integer number (37990962).

Almost surely, 2^75981923 is an apocalyptic number.

75981923 is a deficient number, since it is larger than the sum of its proper divisors (1).

75981923 is an equidigital number, since it uses as much as digits as its factorization.

75981923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 44.

The square root of 75981923 is about 8716.7610383674. The cubic root of 75981923 is about 423.5487719980.

The spelling of 75981923 in words is "seventy-five million, nine hundred eighty-one thousand, nine hundred twenty-three".