78090983 has 8 divisors (see below), whose sum is σ = 79603200. Its totient is φ = 76590360.

The previous prime is 78090949. The next prime is 78091021. The reversal of 78090983 is 38909087.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78090983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78090913) 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, 11366 + ... + 16892.

It is an arithmetic number, because the mean of its divisors is an integer number (9950400).

Almost surely, 2^78090983 is an apocalyptic number.

78090983 is a deficient number, since it is larger than the sum of its proper divisors (1512217).

78090983 is a wasteful number, since it uses less digits than its factorization.

78090983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5797.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 78090983 is about 8836.9102632085. The cubic root of 78090983 is about 427.4319315264.

The spelling of 78090983 in words is "seventy-eight million, ninety thousand, nine hundred eighty-three".