629630725 has 36 divisors (see below), whose sum is σ = 817571556. Its totient is φ = 480829440.

The previous prime is 629630723. The next prime is 629630731. The reversal of 629630725 is 527036926.

It can be written as a sum of positive squares in 6 ways, for example, as 55980324 + 573650401 = 7482^2 + 23951^2 .

It is not a de Polignac number, because 629630725 - 2¹ = 629630723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629630723) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2449797 + ... + 2450053.

It is an arithmetic number, because the mean of its divisors is an integer number (22710321).

Almost surely, 2^629630725 is an apocalyptic number.

It is an amenable number.

629630725 is a deficient number, since it is larger than the sum of its proper divisors (187940831).

629630725 is a wasteful number, since it uses less digits than its factorization.

629630725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 629630725 is about 25092.4435836767. The cubic root of 629630725 is about 857.0943605829.

The spelling of 629630725 in words is "six hundred twenty-nine million, six hundred thirty thousand, seven hundred twenty-five".