653245634 has 4 divisors (see below), whose sum is σ = 979868454. Its totient is φ = 326622816.

The previous prime is 653245633. The next prime is 653245667. The reversal of 653245634 is 436542356.

It is a happy number.

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., 346890625 + 306355009 = 18625^2 + 17503^2 .

It is not an unprimeable number, because it can be changed into a prime (653245633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163311407 + ... + 163311410.

Almost surely, 2^653245634 is an apocalyptic number.

653245634 is a deficient number, since it is larger than the sum of its proper divisors (326622820).

653245634 is a wasteful number, since it uses less digits than its factorization.

653245634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326622819.

The product of its digits is 259200, while the sum is 38.

The square root of 653245634 is about 25558.6704270782. The cubic root of 653245634 is about 867.6785045718.

The spelling of 653245634 in words is "six hundred fifty-three million, two hundred forty-five thousand, six hundred thirty-four".