74747401 has 8 divisors (see below), whose sum is σ = 79067520. Its totient is φ = 70516512.

The previous prime is 74747371. The next prime is 74747473. The reversal of 74747401 is 10474747.

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 74747401 - 2⁵ = 74747369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74744401) 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, 20581 + ... + 23938.

It is an arithmetic number, because the mean of its divisors is an integer number (9883440).

Almost surely, 2^74747401 is an apocalyptic number.

It is an amenable number.

74747401 is a deficient number, since it is larger than the sum of its proper divisors (4320119).

74747401 is a wasteful number, since it uses less digits than its factorization.

74747401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44615.

The product of its (nonzero) digits is 21952, while the sum is 34.

The square root of 74747401 is about 8645.6579275380. The cubic root of 74747401 is about 421.2423551401.

The spelling of 74747401 in words is "seventy-four million, seven hundred forty-seven thousand, four hundred one".