60640634 has 4 divisors (see below), whose sum is σ = 90960954. Its totient is φ = 30320316.

The previous prime is 60640633. The next prime is 60640651. The reversal of 60640634 is 43604606.

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., 57229225 + 3411409 = 7565^2 + 1847^2 .

It is a junction number, because it is equal to n+sod(n) for n = 60640597 and 60640606.

It is not an unprimeable number, because it can be changed into a prime (60640631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15160157 + ... + 15160160.

Almost surely, 2^60640634 is an apocalyptic number.

60640634 is a deficient number, since it is larger than the sum of its proper divisors (30320320).

60640634 is a wasteful number, since it uses less digits than its factorization.

60640634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30320319.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 60640634 is about 7787.2096414569. The cubic root of 60640634 is about 392.8751661908.

The spelling of 60640634 in words is "sixty million, six hundred forty thousand, six hundred thirty-four".