629690 has 8 divisors (see below), whose sum is σ = 1133460. Its totient is φ = 251872.

The previous prime is 629689. The next prime is 629701. The reversal of 629690 is 96926.

It can be written as a sum of positive squares in 2 ways, for example, as 628849 + 841 = 793^2 + 29^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×629690² = 793018992200, which contains 22 as substring.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31475 + ... + 31494.

2⁶²⁹⁶⁹⁰ is an apocalyptic number.

629690 is a deficient number, since it is larger than the sum of its proper divisors (503770).

629690 is a wasteful number, since it uses less digits than its factorization.

629690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62976.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 629690 is about 793.5300876463. The cubic root of 629690 is about 85.7121256069.

The spelling of 629690 in words is "six hundred twenty-nine thousand, six hundred ninety".