74077889 has 4 divisors (see below), whose sum is σ = 74177280. Its totient is φ = 73978500.

The previous prime is 74077877. The next prime is 74077901. The reversal of 74077889 is 98877047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98877047 = 97 ⋅1019351.

It is an interprime number because it is at equal distance from previous prime (74077877) and next prime (74077901).

It is a cyclic number.

It is not a de Polignac number, because 74077889 - 2²⁴ = 57300673 is a prime.

It is a super-3 number, since 3×74077889³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74077819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48569 + ... + 50070.

It is an arithmetic number, because the mean of its divisors is an integer number (18544320).

Almost surely, 2^74077889 is an apocalyptic number.

It is an amenable number.

74077889 is a deficient number, since it is larger than the sum of its proper divisors (99391).

74077889 is an equidigital number, since it uses as much as digits as its factorization.

74077889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99390.

The product of its (nonzero) digits is 790272, while the sum is 50.

The square root of 74077889 is about 8606.8512825539. The cubic root of 74077889 is about 419.9808929327.

The spelling of 74077889 in words is "seventy-four million, seventy-seven thousand, eight hundred eighty-nine".