74985799 has 16 divisors (see below), whose sum is σ = 90478080. Its totient is φ = 60708960.

The previous prime is 74985767. The next prime is 74985803. The reversal of 74985799 is 99758947.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 74985799 - 2⁵ = 74985767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74985709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60702 + ... + 61924.

It is an arithmetic number, because the mean of its divisors is an integer number (5654880).

Almost surely, 2^74985799 is an apocalyptic number.

74985799 is a deficient number, since it is larger than the sum of its proper divisors (15492281).

74985799 is a wasteful number, since it uses less digits than its factorization.

74985799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710.

The product of its digits is 5715360, while the sum is 58.

The square root of 74985799 is about 8659.4341039123. The cubic root of 74985799 is about 421.6897141101.

It can be divided in two parts, 749857 and 99, that added together give a square (749956 = 866²).

The spelling of 74985799 in words is "seventy-four million, nine hundred eighty-five thousand, seven hundred ninety-nine".