74743851 has 16 divisors (see below), whose sum is σ = 122657024. Its totient is φ = 39425184.

The previous prime is 74743841. The next prime is 74743871. The reversal of 74743851 is 15834747.

It is not a de Polignac number, because 74743851 - 2⁶ = 74743787 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (74743831) 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, 136621 + ... + 137166.

It is an arithmetic number, because the mean of its divisors is an integer number (7666064).

Almost surely, 2^74743851 is an apocalyptic number.

74743851 is a deficient number, since it is larger than the sum of its proper divisors (47913173).

74743851 is a wasteful number, since it uses less digits than its factorization.

74743851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273810.

The product of its digits is 94080, while the sum is 39.

The square root of 74743851 is about 8645.4526197302. The cubic root of 74743851 is about 421.2356863061.

It can be divided in two parts, 7474 and 3851, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 74743851 in words is "seventy-four million, seven hundred forty-three thousand, eight hundred fifty-one".