745707457 has 8 divisors (see below), whose sum is σ = 813697632. Its totient is φ = 677750400.

The previous prime is 745707451. The next prime is 745707463. The reversal of 745707457 is 754707547.

745707457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (745707451) and next prime (745707463).

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 745707457 - 2¹¹ = 745705409 is a prime.

It is a super-2 number, since 2×745707457² = 1112159222850813698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (745707451) 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, 77482 + ... + 86572.

It is an arithmetic number, because the mean of its divisors is an integer number (101712204).

Almost surely, 2^745707457 is an apocalyptic number.

It is an amenable number.

745707457 is a deficient number, since it is larger than the sum of its proper divisors (67990175).

745707457 is a wasteful number, since it uses less digits than its factorization.

745707457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16559.

The product of its (nonzero) digits is 960400, while the sum is 46.

The square root of 745707457 is about 27307.6446622553. The cubic root of 745707457 is about 906.8236304773.

The spelling of 745707457 in words is "seven hundred forty-five million, seven hundred seven thousand, four hundred fifty-seven".