84980078 has 8 divisors (see below), whose sum is σ = 133012368. Its totient is φ = 40642624.

The previous prime is 84980069. The next prime is 84980081. The reversal of 84980078 is 87008948.

It is a happy number.

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

It is a super-2 number, since 2×84980078² = 14443227313772168, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 923651 + ... + 923742.

It is an arithmetic number, because the mean of its divisors is an integer number (16626546).

Almost surely, 2^84980078 is an apocalyptic number.

84980078 is a deficient number, since it is larger than the sum of its proper divisors (48032290).

84980078 is a wasteful number, since it uses less digits than its factorization.

84980078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847418.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 84980078 is about 9218.4639718339. The cubic root of 84980078 is about 439.6486140845.

The spelling of 84980078 in words is "eighty-four million, nine hundred eighty thousand, seventy-eight".