629670974 has 4 divisors (see below), whose sum is σ = 944506464. Its totient is φ = 314835486.

The previous prime is 629670971. The next prime is 629671087. The reversal of 629670974 is 479076926.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629670971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157417742 + ... + 157417745.

It is an arithmetic number, because the mean of its divisors is an integer number (236126616).

Almost surely, 2^629670974 is an apocalyptic number.

629670974 is a deficient number, since it is larger than the sum of its proper divisors (314835490).

629670974 is a wasteful number, since it uses less digits than its factorization.

629670974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314835489.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The square root of 629670974 is about 25093.2455852168. The cubic root of 629670974 is about 857.1126233807.

The spelling of 629670974 in words is "six hundred twenty-nine million, six hundred seventy thousand, nine hundred seventy-four".