634020602 has 4 divisors (see below), whose sum is σ = 951030906. Its totient is φ = 317010300.

The previous prime is 634020601. The next prime is 634020613. The reversal of 634020602 is 206020436.

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

It can be written as a sum of positive squares in only one way, i.e., 466084921 + 167935681 = 21589^2 + 12959^2 .

It is not an unprimeable number, because it can be changed into a prime (634020601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158505149 + ... + 158505152.

Almost surely, 2^634020602 is an apocalyptic number.

634020602 is a deficient number, since it is larger than the sum of its proper divisors (317010304).

634020602 is a wasteful number, since it uses less digits than its factorization.

634020602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317010303.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 634020602 is about 25179.7657256774. The cubic root of 634020602 is about 859.0816779433.

The spelling of 634020602 in words is "six hundred thirty-four million, twenty thousand, six hundred two".