74722079 has 4 divisors (see below), whose sum is σ = 78654840. Its totient is φ = 70789320.

The previous prime is 74722061. The next prime is 74722093. The reversal of 74722079 is 97022747.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97022747 = 1471 ⋅65957.

It is a cyclic number.

It is not a de Polignac number, because 74722079 - 2¹² = 74717983 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 (74722099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1966352 + ... + 1966389.

It is an arithmetic number, because the mean of its divisors is an integer number (19663710).

Almost surely, 2^74722079 is an apocalyptic number.

74722079 is a deficient number, since it is larger than the sum of its proper divisors (3932761).

74722079 is a wasteful number, since it uses less digits than its factorization.

74722079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932760.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 74722079 is about 8644.1933689616. The cubic root of 74722079 is about 421.1947820093.

The spelling of 74722079 in words is "seventy-four million, seven hundred twenty-two thousand, seventy-nine".