74998769 has 2 divisors, whose sum is σ = 74998770. Its totient is φ = 74998768.

The previous prime is 74998709. The next prime is 74998771. The reversal of 74998769 is 96789947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53949025 + 21049744 = 7345^2 + 4588^2 .

It is a cyclic number.

It is not a de Polignac number, because 74998769 - 2⁸ = 74998513 is a prime.

It is a super-2 number, since 2×74998769² = 11249630703030722, which contains 22 as substring.

Together with 74998771, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74998709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37499384 + 37499385.

It is an arithmetic number, because the mean of its divisors is an integer number (37499385).

Almost surely, 2^74998769 is an apocalyptic number.

It is an amenable number.

74998769 is a deficient number, since it is larger than the sum of its proper divisors (1).

74998769 is an equidigital number, since it uses as much as digits as its factorization.

74998769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6858432, while the sum is 59.

The square root of 74998769 is about 8660.1829657346. The cubic root of 74998769 is about 421.7140253813.

The spelling of 74998769 in words is "seventy-four million, nine hundred ninety-eight thousand, seven hundred sixty-nine".