74220679 has 8 divisors (see below), whose sum is σ = 80374112. Its totient is φ = 68130720.

The previous prime is 74220677. The next prime is 74220697. The reversal of 74220679 is 97602247.

It is a happy number.

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 74220679 - 2¹ = 74220677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74220673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13419 + ... + 18124.

It is an arithmetic number, because the mean of its divisors is an integer number (10046764).

Almost surely, 2^74220679 is an apocalyptic number.

74220679 is a deficient number, since it is larger than the sum of its proper divisors (6153433).

74220679 is a wasteful number, since it uses less digits than its factorization.

74220679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31737.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 74220679 is about 8615.1424248239. The cubic root of 74220679 is about 420.2505666607.

The spelling of 74220679 in words is "seventy-four million, two hundred twenty thousand, six hundred seventy-nine".