86993340 has 48 divisors (see below), whose sum is σ = 278380032. Its totient is φ = 19884096.

The previous prime is 86993339. The next prime is 86993353. The reversal of 86993340 is 4339968.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 86993292 and 86993301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103144 + ... + 103983.

It is an arithmetic number, because the mean of its divisors is an integer number (5799584).

Almost surely, 2^86993340 is an apocalyptic number.

It is an amenable number.

86993340 is an abundant number, since it is smaller than the sum of its proper divisors (191386692).

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

86993340 is a wasteful number, since it uses less digits than its factorization.

86993340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207146 (or 207144 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 86993340 is about 9327.0220327820. The cubic root of 86993340 is about 443.0934550697.

The spelling of 86993340 in words is "eighty-six million, nine hundred ninety-three thousand, three hundred forty".