74264993 has 16 divisors (see below), whose sum is σ = 86080320. Its totient is φ = 63321600.

The previous prime is 74264987. The next prime is 74265001. The reversal of 74264993 is 39946247.

It is a de Polignac number, because none of the positive numbers 2^k-74264993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74264093) 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, 75998 + ... + 76968.

It is an arithmetic number, because the mean of its divisors is an integer number (5380020).

Almost surely, 2^74264993 is an apocalyptic number.

It is an amenable number.

74264993 is a deficient number, since it is larger than the sum of its proper divisors (11815327).

74264993 is a wasteful number, since it uses less digits than its factorization.

74264993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408.

The product of its digits is 326592, while the sum is 44.

The square root of 74264993 is about 8617.7139079921. The cubic root of 74264993 is about 420.3341879137.

It can be divided in two parts, 74264 and 993, that added together give a palindrome (75257).

The spelling of 74264993 in words is "seventy-four million, two hundred sixty-four thousand, nine hundred ninety-three".