761040257 has 8 divisors (see below), whose sum is σ = 773085696. Its totient is φ = 749038752.

The previous prime is 761040253. The next prime is 761040281. The reversal of 761040257 is 752040167.

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 761040257 - 2² = 761040253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (761040253) 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, 24848 + ... + 46254.

It is an arithmetic number, because the mean of its divisors is an integer number (96635712).

Almost surely, 2^761040257 is an apocalyptic number.

It is an amenable number.

761040257 is a deficient number, since it is larger than the sum of its proper divisors (12045439).

761040257 is a wasteful number, since it uses less digits than its factorization.

761040257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21967.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 761040257 is about 27586.9580961729. The cubic root of 761040257 is about 912.9967049200.

The spelling of 761040257 in words is "seven hundred sixty-one million, forty thousand, two hundred fifty-seven".