74868457 has 4 divisors (see below), whose sum is σ = 75064320. Its totient is φ = 74672596.

The previous prime is 74868439. The next prime is 74868481. The reversal of 74868457 is 75486847.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74868457 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74868457.

It is not an unprimeable number, because it can be changed into a prime (74868557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97357 + ... + 98122.

It is an arithmetic number, because the mean of its divisors is an integer number (18766080).

Almost surely, 2^74868457 is an apocalyptic number.

It is an amenable number.

74868457 is a deficient number, since it is larger than the sum of its proper divisors (195863).

74868457 is a wasteful number, since it uses less digits than its factorization.

74868457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195862.

The product of its digits is 1505280, while the sum is 49.

The square root of 74868457 is about 8652.6560662030. The cubic root of 74868457 is about 421.4696380057.

The spelling of 74868457 in words is "seventy-four million, eight hundred sixty-eight thousand, four hundred fifty-seven".