761938861 has 16 divisors (see below), whose sum is σ = 822000960. Its totient is φ = 703630080.

The previous prime is 761938847. The next prime is 761938901. The reversal of 761938861 is 168839167.

It is a cyclic number.

It is not a de Polignac number, because 761938861 - 2⁵ = 761938829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (761938811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 641310 + ... + 642496.

It is an arithmetic number, because the mean of its divisors is an integer number (51375060).

Almost surely, 2^761938861 is an apocalyptic number.

It is an amenable number.

761938861 is a deficient number, since it is larger than the sum of its proper divisors (60062099).

761938861 is a wasteful number, since it uses less digits than its factorization.

761938861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884.

The product of its digits is 435456, while the sum is 49.

The square root of 761938861 is about 27603.2400453280. The cubic root of 761938861 is about 913.3559061529.

The spelling of 761938861 in words is "seven hundred sixty-one million, nine hundred thirty-eight thousand, eight hundred sixty-one".