74689899 has 4 divisors (see below), whose sum is σ = 99586536. Its totient is φ = 49793264.

The previous prime is 74689873. The next prime is 74689907. The reversal of 74689899 is 99898647.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74689899 - 2¹³ = 74681707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74689829) 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, 12448314 + ... + 12448319.

It is an arithmetic number, because the mean of its divisors is an integer number (24896634).

Almost surely, 2^74689899 is an apocalyptic number.

74689899 is a deficient number, since it is larger than the sum of its proper divisors (24896637).

74689899 is a wasteful number, since it uses less digits than its factorization.

74689899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24896636.

The product of its digits is 7838208, while the sum is 60.

The square root of 74689899 is about 8642.3318033966. The cubic root of 74689899 is about 421.1343090564.

The spelling of 74689899 in words is "seventy-four million, six hundred eighty-nine thousand, eight hundred ninety-nine".