84980747 has 8 divisors (see below), whose sum is σ = 88214592. Its totient is φ = 81806400.

The previous prime is 84980743. The next prime is 84980839. The reversal of 84980747 is 74708948.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84980747 - 2² = 84980743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84980743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11954 + ... + 17687.

It is an arithmetic number, because the mean of its divisors is an integer number (11026824).

Almost surely, 2^84980747 is an apocalyptic number.

84980747 is a deficient number, since it is larger than the sum of its proper divisors (3233845).

84980747 is a wasteful number, since it uses less digits than its factorization.

84980747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29749.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 84980747 is about 9218.5002576341. The cubic root of 84980747 is about 439.6497677829.

The spelling of 84980747 in words is "eighty-four million, nine hundred eighty thousand, seven hundred forty-seven".