757890961 has 4 divisors (see below), whose sum is σ = 758614500. Its totient is φ = 757167424.

The previous prime is 757890949. The next prime is 757890977. The reversal of 757890961 is 169098757.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 169098757 = 919 ⋅184003.

It can be written as a sum of positive squares in 2 ways, for example, as 706496400 + 51394561 = 26580^2 + 7169^2 .

It is a cyclic number.

It is not a de Polignac number, because 757890961 - 2⁵ = 757890929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 757890899 and 757890908.

It is not an unprimeable number, because it can be changed into a prime (757890461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360196 + ... + 362293.

It is an arithmetic number, because the mean of its divisors is an integer number (189653625).

Almost surely, 2^757890961 is an apocalyptic number.

It is an amenable number.

757890961 is a deficient number, since it is larger than the sum of its proper divisors (723539).

757890961 is a wasteful number, since it uses less digits than its factorization.

757890961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723538.

The product of its (nonzero) digits is 952560, while the sum is 52.

The square root of 757890961 is about 27529.8194872397. The cubic root of 757890961 is about 911.7355924183.

The spelling of 757890961 in words is "seven hundred fifty-seven million, eight hundred ninety thousand, nine hundred sixty-one".