74919379 has 2 divisors, whose sum is σ = 74919380. Its totient is φ = 74919378.

The previous prime is 74919371. The next prime is 74919401. The reversal of 74919379 is 97391947.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74919379 - 2³ = 74919371 is a prime.

It is a super-2 number, since 2×74919379² = 11225826699491282, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74919371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37459689 + 37459690.

It is an arithmetic number, because the mean of its divisors is an integer number (37459690).

Almost surely, 2^74919379 is an apocalyptic number.

74919379 is a deficient number, since it is larger than the sum of its proper divisors (1).

74919379 is an equidigital number, since it uses as much as digits as its factorization.

74919379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 428652, while the sum is 49.

The square root of 74919379 is about 8655.5981306898. The cubic root of 74919379 is about 421.5651709523.

The spelling of 74919379 in words is "seventy-four million, nine hundred nineteen thousand, three hundred seventy-nine".