690860061 has 12 divisors (see below), whose sum is σ = 1005768192. Its totient is φ = 456946056.

The previous prime is 690860047. The next prime is 690860063. The reversal of 690860061 is 160068096.

It is not a de Polignac number, because 690860061 - 2⁷ = 690859933 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 690859998 and 690860025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690860063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 301071 + ... + 303356.

It is an arithmetic number, because the mean of its divisors is an integer number (83814016).

Almost surely, 2^690860061 is an apocalyptic number.

It is an amenable number.

690860061 is a deficient number, since it is larger than the sum of its proper divisors (314908131).

690860061 is a wasteful number, since it uses less digits than its factorization.

690860061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604560 (or 604557 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 690860061 is about 26284.2169561887. The cubic root of 690860061 is about 884.0225884532.

The spelling of 690860061 in words is "six hundred ninety million, eight hundred sixty thousand, sixty-one".