86040947 has 16 divisors (see below), whose sum is σ = 90484992. Its totient is φ = 81738720.

The previous prime is 86040937. The next prime is 86040967. The reversal of 86040947 is 74904068.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 86040947 - 2¹⁶ = 85975411 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 86040947.

It is not an unprimeable number, because it can be changed into a prime (86040917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407672 + ... + 407882.

It is an arithmetic number, because the mean of its divisors is an integer number (5655312).

Almost surely, 2^86040947 is an apocalyptic number.

86040947 is a deficient number, since it is larger than the sum of its proper divisors (4444045).

86040947 is a wasteful number, since it uses less digits than its factorization.

86040947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 86040947 is about 9275.8259470518. The cubic root of 86040947 is about 441.4705394937.

The spelling of 86040947 in words is "eighty-six million, forty thousand, nine hundred forty-seven".