74719969 has 2 divisors, whose sum is σ = 74719970. Its totient is φ = 74719968.

The previous prime is 74719963. The next prime is 74719991. The reversal of 74719969 is 96991747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71622369 + 3097600 = 8463^2 + 1760^2 .

It is a cyclic number.

It is not a de Polignac number, because 74719969 - 2¹⁷ = 74588897 is a prime.

It is a super-2 number, since 2×74719969² = 11166147534721922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74719963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37359984 + 37359985.

It is an arithmetic number, because the mean of its divisors is an integer number (37359985).

Almost surely, 2^74719969 is an apocalyptic number.

It is an amenable number.

74719969 is a deficient number, since it is larger than the sum of its proper divisors (1).

74719969 is an equidigital number, since it uses as much as digits as its factorization.

74719969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 52.

The square root of 74719969 is about 8644.0713208534. The cubic root of 74719969 is about 421.1908174098.

The spelling of 74719969 in words is "seventy-four million, seven hundred nineteen thousand, nine hundred sixty-nine".