87381716 has 24 divisors (see below), whose sum is σ = 158284896. Its totient is φ = 42176160.

The previous prime is 87381709. The next prime is 87381731. The reversal of 87381716 is 61718378.

It is a super-2 number, since 2×87381716² = 15271128582209312, which contains 22 as substring.

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, 17135 + ... + 21641.

It is an arithmetic number, because the mean of its divisors is an integer number (6595204).

Almost surely, 2^87381716 is an apocalyptic number.

It is an amenable number.

87381716 is a deficient number, since it is larger than the sum of its proper divisors (70903180).

87381716 is a wasteful number, since it uses less digits than its factorization.

87381716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4679 (or 4677 counting only the distinct ones).

The product of its digits is 56448, while the sum is 41.

The square root of 87381716 is about 9347.8187830103. The cubic root of 87381716 is about 443.7518633526.

The spelling of 87381716 in words is "eighty-seven million, three hundred eighty-one thousand, seven hundred sixteen".