745800857 has 8 divisors (see below), whose sum is σ = 751344000. Its totient is φ = 740276064.

The previous prime is 745800833. The next prime is 745800871. The reversal of 745800857 is 758008547.

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 745800857 - 2¹⁸ = 745538713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745800817) 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, 83093 + ... + 91629.

It is an arithmetic number, because the mean of its divisors is an integer number (93918000).

Almost surely, 2^745800857 is an apocalyptic number.

It is an amenable number.

745800857 is a deficient number, since it is larger than the sum of its proper divisors (5543143).

745800857 is a wasteful number, since it uses less digits than its factorization.

745800857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9175.

The product of its (nonzero) digits is 313600, while the sum is 44.

The square root of 745800857 is about 27309.3547525386. The cubic root of 745800857 is about 906.8614888405.

The spelling of 745800857 in words is "seven hundred forty-five million, eight hundred thousand, eight hundred fifty-seven".