769013661 has 32 divisors (see below), whose sum is σ = 1137713920. Its totient is φ = 458970624.

The previous prime is 769013659. The next prime is 769013681. The reversal of 769013661 is 166310967.

It is not a de Polignac number, because 769013661 - 2¹ = 769013659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (769013681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 589536 + ... + 590838.

It is an arithmetic number, because the mean of its divisors is an integer number (35553560).

Almost surely, 2^769013661 is an apocalyptic number.

It is an amenable number.

769013661 is a deficient number, since it is larger than the sum of its proper divisors (368700259).

769013661 is a wasteful number, since it uses less digits than its factorization.

769013661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1765.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 769013661 is about 27731.0955607599. The cubic root of 769013661 is about 916.1741169776.

The spelling of 769013661 in words is "seven hundred sixty-nine million, thirteen thousand, six hundred sixty-one".