83189457 has 32 divisors (see below), whose sum is σ = 134265600. Its totient is φ = 50599296.

The previous prime is 83189441. The next prime is 83189473. The reversal of 83189457 is 75498138.

It is an interprime number because it is at equal distance from previous prime (83189441) and next prime (83189473).

It is not a de Polignac number, because 83189457 - 2⁴ = 83189441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83189437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29908 + ... + 32570.

It is an arithmetic number, because the mean of its divisors is an integer number (4195800).

Almost surely, 2^83189457 is an apocalyptic number.

It is an amenable number.

83189457 is a deficient number, since it is larger than the sum of its proper divisors (51076143).

83189457 is a wasteful number, since it uses less digits than its factorization.

83189457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774 (or 2768 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 83189457 is about 9120.8254560648. The cubic root of 83189457 is about 436.5387124532.

The spelling of 83189457 in words is "eighty-three million, one hundred eighty-nine thousand, four hundred fifty-seven".