74521654 has 4 divisors (see below), whose sum is σ = 111782484. Its totient is φ = 37260826.

The previous prime is 74521651. The next prime is 74521691. The reversal of 74521654 is 45612547.

It is a semiprime because it is the product of two primes.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74521651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18630412 + ... + 18630415.

It is an arithmetic number, because the mean of its divisors is an integer number (27945621).

Almost surely, 2^74521654 is an apocalyptic number.

74521654 is a deficient number, since it is larger than the sum of its proper divisors (37260830).

74521654 is a wasteful number, since it uses less digits than its factorization.

74521654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37260829.

The product of its digits is 33600, while the sum is 34.

The square root of 74521654 is about 8632.5925422204. The cubic root of 74521654 is about 420.8178583685.

The spelling of 74521654 in words is "seventy-four million, five hundred twenty-one thousand, six hundred fifty-four".