86773949 has 4 divisors (see below), whose sum is σ = 86796864. Its totient is φ = 86751036.

The previous prime is 86773913. The next prime is 86773979. The reversal of 86773949 is 94937768.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86773949 - 2⁸ = 86773693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86773949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86773909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4277 + ... + 13850.

It is an arithmetic number, because the mean of its divisors is an integer number (21699216).

Almost surely, 2^86773949 is an apocalyptic number.

It is an amenable number.

86773949 is a deficient number, since it is larger than the sum of its proper divisors (22915).

86773949 is a wasteful number, since it uses less digits than its factorization.

86773949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22914.

The product of its digits is 2286144, while the sum is 53.

The square root of 86773949 is about 9315.2535660603. The cubic root of 86773949 is about 442.7206581391.

The spelling of 86773949 in words is "eighty-six million, seven hundred seventy-three thousand, nine hundred forty-nine".