74724849 has 20 divisors (see below), whose sum is σ = 115230720. Its totient is φ = 48207960.

The previous prime is 74724833. The next prime is 74724887. The reversal of 74724849 is 94842747.

It is not a de Polignac number, because 74724849 - 2⁴ = 74724833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74724829) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12369 + ... + 17390.

It is an arithmetic number, because the mean of its divisors is an integer number (5761536).

Almost surely, 2^74724849 is an apocalyptic number.

It is an amenable number.

74724849 is a deficient number, since it is larger than the sum of its proper divisors (40505871).

74724849 is a wasteful number, since it uses less digits than its factorization.

74724849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29802 (or 29793 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 74724849 is about 8644.3535906394. The cubic root of 74724849 is about 421.1999866073.

It can be divided in two parts, 7472 and 4849, that added together give a palindrome (12321).

The spelling of 74724849 in words is "seventy-four million, seven hundred twenty-four thousand, eight hundred forty-nine".