83147493 has 48 divisors (see below), whose sum is σ = 138822336. Its totient is φ = 43729920.

The previous prime is 83147483. The next prime is 83147497. The reversal of 83147493 is 39474138.

It is not a de Polignac number, because 83147493 - 2⁹ = 83146981 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83147497) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94371 + ... + 95247.

It is an arithmetic number, because the mean of its divisors is an integer number (2892132).

Almost surely, 2^83147493 is an apocalyptic number.

It is an amenable number.

83147493 is a deficient number, since it is larger than the sum of its proper divisors (55674843).

83147493 is a wasteful number, since it uses less digits than its factorization.

83147493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 921 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 83147493 is about 9118.5247162027. The cubic root of 83147493 is about 436.4652977350.

The spelling of 83147493 in words is "eighty-three million, one hundred forty-seven thousand, four hundred ninety-three".