690240627 has 6 divisors (see below), whose sum is σ = 997014252. Its totient is φ = 460160412.

The previous prime is 690240611. The next prime is 690240631. The reversal of 690240627 is 726042096.

It is a happy number.

690240627 is a `hidden beast` number, since 6 + 9 + 0 + 24 + 0 + 627 = 666.

It is not a de Polignac number, because 690240627 - 2⁴ = 690240611 is a prime.

It is a super-2 number, since 2×690240627² = 952864246322706258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 690240591 and 690240600.

It is not an unprimeable number, because it can be changed into a prime (690240827) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38346693 + ... + 38346710.

It is an arithmetic number, because the mean of its divisors is an integer number (166169042).

Almost surely, 2^690240627 is an apocalyptic number.

690240627 is a deficient number, since it is larger than the sum of its proper divisors (306773625).

690240627 is a wasteful number, since it uses less digits than its factorization.

690240627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76693409 (or 76693406 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 690240627 is about 26272.4309305401. The cubic root of 690240627 is about 883.7583007822.

The spelling of 690240627 in words is "six hundred ninety million, two hundred forty thousand, six hundred twenty-seven".