74631109 has 16 divisors (see below), whose sum is σ = 88449408. Its totient is φ = 61636032.

The previous prime is 74631103. The next prime is 74631127. The reversal of 74631109 is 90113647.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 74631109 - 2⁹ = 74630597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74631103) 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, 26367 + ... + 29059.

It is an arithmetic number, because the mean of its divisors is an integer number (5528088).

Almost surely, 2^74631109 is an apocalyptic number.

It is an amenable number.

74631109 is a deficient number, since it is larger than the sum of its proper divisors (13818299).

74631109 is a wasteful number, since it uses less digits than its factorization.

74631109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 74631109 is about 8638.9298527075. The cubic root of 74631109 is about 421.0237854775.

The spelling of 74631109 in words is "seventy-four million, six hundred thirty-one thousand, one hundred nine".