74951999 has 8 divisors (see below), whose sum is σ = 76098528. Its totient is φ = 73813600.

The previous prime is 74951983. The next prime is 74952011. The reversal of 74951999 is 99915947.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74951999 - 2⁴ = 74951983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74951999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74951909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18014 + ... + 21780.

It is an arithmetic number, because the mean of its divisors is an integer number (9512316).

Almost surely, 2^74951999 is an apocalyptic number.

74951999 is a deficient number, since it is larger than the sum of its proper divisors (1146529).

74951999 is a wasteful number, since it uses less digits than its factorization.

74951999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4065.

The product of its digits is 918540, while the sum is 53.

The square root of 74951999 is about 8657.4822552518. The cubic root of 74951999 is about 421.6263454252.

The spelling of 74951999 in words is "seventy-four million, nine hundred fifty-one thousand, nine hundred ninety-nine".