690654210706 has 4 divisors (see below), whose sum is σ = 1035981316062. Its totient is φ = 345327105352.

The previous prime is 690654210671. The next prime is 690654210713. The reversal of 690654210706 is 607012456096.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 507905655625 + 182748555081 = 712675^2 + 427491^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172663552675 + ... + 172663552678.

Almost surely, 2^690654210706 is an apocalyptic number.

690654210706 is a deficient number, since it is larger than the sum of its proper divisors (345327105356).

690654210706 is a wasteful number, since it uses less digits than its factorization.

690654210706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345327105355.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 690654210706 in words is "six hundred ninety billion, six hundred fifty-four million, two hundred ten thousand, seven hundred six".