74739679 has 8 divisors (see below), whose sum is σ = 87500448. Its totient is φ = 62499840.

The previous prime is 74739677. The next prime is 74739683. The reversal of 74739679 is 97693747.

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 74739679 - 2¹ = 74739677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74739671) 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, 129922 + ... + 130495.

It is an arithmetic number, because the mean of its divisors is an integer number (10937556).

Almost surely, 2^74739679 is an apocalyptic number.

74739679 is a deficient number, since it is larger than the sum of its proper divisors (12760769).

74739679 is a wasteful number, since it uses less digits than its factorization.

74739679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260465.

The product of its digits is 2000376, while the sum is 52.

The square root of 74739679 is about 8645.2113334493. The cubic root of 74739679 is about 421.2278487473.

The spelling of 74739679 in words is "seventy-four million, seven hundred thirty-nine thousand, six hundred seventy-nine".