690672306 has 32 divisors (see below), whose sum is σ = 1489521600. Its totient is φ = 212785920.

The previous prime is 690672293. The next prime is 690672319. The reversal of 690672306 is 603276096.

It is an interprime number because it is at equal distance from previous prime (690672293) and next prime (690672319).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69211 + ... + 78558.

It is an arithmetic number, because the mean of its divisors is an integer number (46547550).

Almost surely, 2^690672306 is an apocalyptic number.

690672306 is an abundant number, since it is smaller than the sum of its proper divisors (798849294).

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

690672306 is a wasteful number, since it uses less digits than its factorization.

690672306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147834.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 690672306 is about 26280.6450834069. The cubic root of 690672306 is about 883.9424976076.

The spelling of 690672306 in words is "six hundred ninety million, six hundred seventy-two thousand, three hundred six".