632669678 has 4 divisors (see below), whose sum is σ = 949004520. Its totient is φ = 316334838.

The previous prime is 632669663. The next prime is 632669693. The reversal of 632669678 is 876966236.

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

It is an interprime number because it is at equal distance from previous prime (632669663) and next prime (632669693).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158167418 + ... + 158167421.

It is an arithmetic number, because the mean of its divisors is an integer number (237251130).

Almost surely, 2^632669678 is an apocalyptic number.

632669678 is a deficient number, since it is larger than the sum of its proper divisors (316334842).

632669678 is a wasteful number, since it uses less digits than its factorization.

632669678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316334841.

The product of its digits is 3919104, while the sum is 53.

The square root of 632669678 is about 25152.9258337872. The cubic root of 632669678 is about 858.4710882642.

The spelling of 632669678 in words is "six hundred thirty-two million, six hundred sixty-nine thousand, six hundred seventy-eight".