690554007 has 24 divisors (see below), whose sum is σ = 1171851408. Its totient is φ = 386323200.

The previous prime is 690553973. The next prime is 690554009. The reversal of 690554007 is 700455096.

It is not a de Polignac number, because 690554007 - 2¹⁶ = 690488471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690554009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 266994 + ... + 269567.

It is an arithmetic number, because the mean of its divisors is an integer number (48827142).

Almost surely, 2^690554007 is an apocalyptic number.

690554007 is a deficient number, since it is larger than the sum of its proper divisors (481297401).

690554007 is a wasteful number, since it uses less digits than its factorization.

690554007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536591 (or 536588 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 690554007 is about 26278.3943002612. The cubic root of 690554007 is about 883.8920272261.

The spelling of 690554007 in words is "six hundred ninety million, five hundred fifty-four thousand, seven".