48630981 has 12 divisors (see below), whose sum is σ = 75427872. Its totient is φ = 27789048.

The previous prime is 48630977. The next prime is 48630983. The reversal of 48630981 is 18903684.

It is not a de Polignac number, because 48630981 - 2² = 48630977 is a prime.

It is a super-2 number, since 2×48630981² = 4729944626044722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48630983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165265 + ... + 165558.

It is an arithmetic number, because the mean of its divisors is an integer number (6285656).

Almost surely, 2^48630981 is an apocalyptic number.

It is an amenable number.

48630981 is a deficient number, since it is larger than the sum of its proper divisors (26796891).

48630981 is a wasteful number, since it uses less digits than its factorization.

48630981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330840 (or 330833 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 48630981 is about 6973.5916857814. The cubic root of 48630981 is about 365.0096475839.

The spelling of 48630981 in words is "forty-eight million, six hundred thirty thousand, nine hundred eighty-one".