690545096 has 8 divisors (see below), whose sum is σ = 1294772070. Its totient is φ = 345272544.

The previous prime is 690545047. The next prime is 690545111.

690545096 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 573602500 + 116942596 = 23950^2 + 10814^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43159061 + ... + 43159076.

Almost surely, 2^690545096 is an apocalyptic number.

It is an amenable number.

690545096 is a deficient number, since it is larger than the sum of its proper divisors (604226974).

690545096 is a wasteful number, since it uses less digits than its factorization.

690545096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86318143 (or 86318139 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 44.

The square root of 690545096 is about 26278.2247497809. The cubic root of 690545096 is about 883.8882252566. Note that the first 3 decimals are identical.

The spelling of 690545096 in words is "six hundred ninety million, five hundred forty-five thousand, ninety-six".