761257 has 4 divisors (see below), whose sum is σ = 870016. Its totient is φ = 652500.

The previous prime is 761251. The next prime is 761261. The reversal of 761257 is 752167.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 752167 = 13 ⋅57859.

It is a cyclic number.

It is not a de Polignac number, because 761257 - 2³ = 761249 is a prime.

It is the 873-rd Hogben number.

It is not an unprimeable number, because it can be changed into a prime (761251) by changing a digit.

It is a nontrivial repunit in base 872.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54369 + ... + 54382.

It is an arithmetic number, because the mean of its divisors is an integer number (217504).

2⁷⁶¹²⁵⁷ is an apocalyptic number.

It is an amenable number.

761257 is a deficient number, since it is larger than the sum of its proper divisors (108759).

761257 is a wasteful number, since it uses less digits than its factorization.

761257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108758.

The product of its digits is 2940, while the sum is 28.

The square root of 761257 is about 872.5004297993. The cubic root of 761257 is about 91.3083370008.

The spelling of 761257 in words is "seven hundred sixty-one thousand, two hundred fifty-seven".