60997638 has 64 divisors (see below), whose sum is σ = 140313600. Its totient is φ = 17521920.

The previous prime is 60997631. The next prime is 60997639. The reversal of 60997638 is 83679906.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60997631) 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, 116818 + ... + 117338.

It is an arithmetic number, because the mean of its divisors is an integer number (2192400).

Almost surely, 2^60997638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 60997638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70156800).

60997638 is an abundant number, since it is smaller than the sum of its proper divisors (79315962).

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

60997638 is a wasteful number, since it uses less digits than its factorization.

60997638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 60997638 is about 7810.0984628876. The cubic root of 60997638 is about 393.6446373669.

The spelling of 60997638 in words is "sixty million, nine hundred ninety-seven thousand, six hundred thirty-eight".