74720629 has 8 divisors (see below), whose sum is σ = 78728832. Its totient is φ = 70775760.

The previous prime is 74720623. The next prime is 74720641. The reversal of 74720629 is 92602747.

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 74720629 - 2²¹ = 72623477 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 (74720623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13402 + ... + 18139.

It is an arithmetic number, because the mean of its divisors is an integer number (9841104).

Almost surely, 2^74720629 is an apocalyptic number.

It is an amenable number.

74720629 is a deficient number, since it is larger than the sum of its proper divisors (4008203).

74720629 is a wasteful number, since it uses less digits than its factorization.

74720629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31667.

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

The square root of 74720629 is about 8644.1094972241. The cubic root of 74720629 is about 421.1920575295.

The spelling of 74720629 in words is "seventy-four million, seven hundred twenty thousand, six hundred twenty-nine".