766859061 has 4 divisors (see below), whose sum is σ = 1022478752. Its totient is φ = 511239372.

The previous prime is 766859047. The next prime is 766859063. The reversal of 766859061 is 160958667.

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.

It is not a de Polignac number, because 766859061 - 2¹⁴ = 766842677 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 766859061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766859063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127809841 + ... + 127809846.

It is an arithmetic number, because the mean of its divisors is an integer number (255619688).

Almost surely, 2^766859061 is an apocalyptic number.

It is an amenable number.

766859061 is a deficient number, since it is larger than the sum of its proper divisors (255619691).

766859061 is a wasteful number, since it uses less digits than its factorization.

766859061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255619690.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 766859061 is about 27692.2202251824. The cubic root of 766859061 is about 915.3176800107.

The spelling of 766859061 in words is "seven hundred sixty-six million, eight hundred fifty-nine thousand, sixty-one".