74720653 has 8 divisors (see below), whose sum is σ = 85464000. Its totient is φ = 63994560.

The previous prime is 74720641. The next prime is 74720677. The reversal of 74720653 is 35602747.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74720653 - 2¹³ = 74712461 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6933 + ... + 14053.

It is an arithmetic number, because the mean of its divisors is an integer number (10683000).

Almost surely, 2^74720653 is an apocalyptic number.

It is an amenable number.

74720653 is a deficient number, since it is larger than the sum of its proper divisors (10743347).

74720653 is a wasteful number, since it uses less digits than its factorization.

74720653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8627.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 74720653 is about 8644.1108854526. The cubic root of 74720653 is about 421.1921026247.

The spelling of 74720653 in words is "seventy-four million, seven hundred twenty thousand, six hundred fifty-three".