761867856 has 100 divisors (see below), whose sum is σ = 2211709632. Its totient is φ = 253191744.

The previous prime is 761867837. The next prime is 761867881. The reversal of 761867856 is 658768167.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 573465 + ... + 574791.

Almost surely, 2^761867856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 761867856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1105854816).

761867856 is an abundant number, since it is smaller than the sum of its proper divisors (1449841776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

761867856 is a wasteful number, since it uses less digits than its factorization.

761867856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790 (or 1775 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 761867856 is about 27601.9538438858. The cubic root of 761867856 is about 913.3275334256.

The spelling of 761867856 in words is "seven hundred sixty-one million, eight hundred sixty-seven thousand, eight hundred fifty-six".