60646638 has 64 divisors (see below), whose sum is σ = 135862272. Its totient is φ = 17928960.

The previous prime is 60646609. The next prime is 60646639. The reversal of 60646638 is 83664606.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 60646596 and 60646605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60646639) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260170 + ... + 260402.

It is an arithmetic number, because the mean of its divisors is an integer number (2122848).

Almost surely, 2^60646638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 60646638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67931136).

60646638 is an abundant number, since it is smaller than the sum of its proper divisors (75215634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

60646638 is a wasteful number, since it uses less digits than its factorization.

60646638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 60646638 is about 7787.5951358555. The cubic root of 60646638 is about 392.8881318900. Note that the first 3 decimals are identical.

The spelling of 60646638 in words is "sixty million, six hundred forty-six thousand, six hundred thirty-eight".