74699623 has 2 divisors, whose sum is σ = 74699624. Its totient is φ = 74699622.

The previous prime is 74699609. The next prime is 74699629. The reversal of 74699623 is 32699647.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74699623 - 2⁹ = 74699111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74699629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37349811 + 37349812.

It is an arithmetic number, because the mean of its divisors is an integer number (37349812).

Almost surely, 2^74699623 is an apocalyptic number.

74699623 is a deficient number, since it is larger than the sum of its proper divisors (1).

74699623 is an equidigital number, since it uses as much as digits as its factorization.

74699623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 46.

The square root of 74699623 is about 8642.8943647369. The cubic root of 74699623 is about 421.1525843180.

The spelling of 74699623 in words is "seventy-four million, six hundred ninety-nine thousand, six hundred twenty-three".