690776 has 16 divisors (see below), whose sum is σ = 1312800. Its totient is φ = 340704.

The previous prime is 690757. The next prime is 690787. The reversal of 690776 is 677096.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 690776.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86 + ... + 1178.

It is an arithmetic number, because the mean of its divisors is an integer number (82050).

2⁶⁹⁰⁷⁷⁶ is an apocalyptic number.

It is an amenable number.

690776 is a deficient number, since it is larger than the sum of its proper divisors (622024).

690776 is a wasteful number, since it uses less digits than its factorization.

690776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178 (or 1174 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 690776 is about 831.1293521468. The cubic root of 690776 is about 88.3986732259.

The spelling of 690776 in words is "six hundred ninety thousand, seven hundred seventy-six".