83387998 has 8 divisors (see below), whose sum is σ = 131665320. Its totient is φ = 39499560.

The previous prime is 83387981. The next prime is 83388001. The reversal of 83387998 is 89978338.

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

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, 1097173 + ... + 1097248.

It is an arithmetic number, because the mean of its divisors is an integer number (16458165).

Almost surely, 2^83387998 is an apocalyptic number.

83387998 is a deficient number, since it is larger than the sum of its proper divisors (48277322).

83387998 is a wasteful number, since it uses less digits than its factorization.

83387998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194442.

The product of its digits is 2612736, while the sum is 55.

The square root of 83387998 is about 9131.7029080013. The cubic root of 83387998 is about 436.8857194619.

It can be divided in two parts, 833 and 87998, that added together give a triangular number (88831 = T₄₂₁).

The spelling of 83387998 in words is "eighty-three million, three hundred eighty-seven thousand, nine hundred ninety-eight".