690500173 has 16 divisors (see below), whose sum is σ = 766386432. Its totient is φ = 622036800.

The previous prime is 690500159. The next prime is 690500183. The reversal of 690500173 is 371005096.

It is not a de Polignac number, because 690500173 - 2¹³ = 690491981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690500183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148108 + ... + 152698.

It is an arithmetic number, because the mean of its divisors is an integer number (47899152).

Almost surely, 2^690500173 is an apocalyptic number.

It is an amenable number.

690500173 is a deficient number, since it is larger than the sum of its proper divisors (75886259).

690500173 is a wasteful number, since it uses less digits than its factorization.

690500173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4737 (or 4715 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 690500173 is about 26277.3699787479. The cubic root of 690500173 is about 883.8690579003.

The spelling of 690500173 in words is "six hundred ninety million, five hundred thousand, one hundred seventy-three".