700121457 has 18 divisors (see below), whose sum is σ = 1176395298. Its totient is φ = 400069152.

The previous prime is 700121423. The next prime is 700121473. The reversal of 700121457 is 754121007.

It can be written as a sum of positive squares in only one way, i.e., 660695616 + 39425841 = 25704^2 + 6279^2 .

It is not a de Polignac number, because 700121457 - 2¹⁹ = 699597169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 700121457.

It is not an unprimeable number, because it can be changed into a prime (700121407) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 793348 + ... + 794229.

Almost surely, 2^700121457 is an apocalyptic number.

It is an amenable number.

700121457 is a deficient number, since it is larger than the sum of its proper divisors (476273841).

700121457 is a wasteful number, since it uses less digits than its factorization.

700121457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587597 (or 1587587 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 700121457 is about 26459.8083326391. The cubic root of 700121457 is about 887.9553521806.

The spelling of 700121457 in words is "seven hundred million, one hundred twenty-one thousand, four hundred fifty-seven".