113897780 has 24 divisors (see below), whose sum is σ = 251774880. Its totient is φ = 43161120.

The previous prime is 113897767. The next prime is 113897809. The reversal of 113897780 is 87798311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149486 + ... + 150245.

It is an arithmetic number, because the mean of its divisors is an integer number (10490620).

Almost surely, 2^113897780 is an apocalyptic number.

113897780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113897780 is an abundant number, since it is smaller than the sum of its proper divisors (137877100).

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

113897780 is a wasteful number, since it uses less digits than its factorization.

113897780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299759 (or 299757 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 44.

The square root of 113897780 is about 10672.2902884058. The cubic root of 113897780 is about 484.7357897746.

The spelling of 113897780 in words is "one hundred thirteen million, eight hundred ninety-seven thousand, seven hundred eighty".