690003172 has 6 divisors (see below), whose sum is σ = 1207505558. Its totient is φ = 345001584.

The previous prime is 690003169. The next prime is 690003187. The reversal of 690003172 is 271300096.

It can be written as a sum of positive squares in only one way, i.e., 583995556 + 106007616 = 24166^2 + 10296^2 .

It is a super-3 number, since 3×690003172³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 690003172.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86250393 + ... + 86250400.

Almost surely, 2^690003172 is an apocalyptic number.

It is an amenable number.

690003172 is a deficient number, since it is larger than the sum of its proper divisors (517502386).

690003172 is a wasteful number, since it uses less digits than its factorization.

690003172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172500797 (or 172500795 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 690003172 is about 26267.9114510461. The cubic root of 690003172 is about 883.6569463231.

The spelling of 690003172 in words is "six hundred ninety million, three thousand, one hundred seventy-two".