690772 has 12 divisors (see below), whose sum is σ = 1229760. Its totient is φ = 339416.

The previous prime is 690757. The next prime is 690787. The reversal of 690772 is 277096.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (690757) and next prime (690787).

It is a congruent number.

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, 1228 + ... + 1699.

It is an arithmetic number, because the mean of its divisors is an integer number (102480).

2⁶⁹⁰⁷⁷² is an apocalyptic number.

It is an amenable number.

690772 is a deficient number, since it is larger than the sum of its proper divisors (538988).

690772 is a wasteful number, since it uses less digits than its factorization.

690772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2990 (or 2988 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 690772 is about 831.1269457790. The cubic root of 690772 is about 88.3985025988.

The spelling of 690772 in words is "six hundred ninety thousand, seven hundred seventy-two".