761072257 has 8 divisors (see below), whose sum is σ = 830770272. Its totient is φ = 691459200.

The previous prime is 761072251. The next prime is 761072281. The reversal of 761072257 is 752270167.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-761072257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (761072251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1719 + ... + 39052.

It is an arithmetic number, because the mean of its divisors is an integer number (103846284).

Almost surely, 2^761072257 is an apocalyptic number.

It is an amenable number.

761072257 is a deficient number, since it is larger than the sum of its proper divisors (69698015).

761072257 is a wasteful number, since it uses less digits than its factorization.

761072257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42479.

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 761072257 is about 27587.5380742827. The cubic root of 761072257 is about 913.0095012142.

The spelling of 761072257 in words is "seven hundred sixty-one million, seventy-two thousand, two hundred fifty-seven".