83493749 has 8 divisors (see below), whose sum is σ = 92249280. Its totient is φ = 75165376.

The previous prime is 83493731. The next prime is 83493797. The reversal of 83493749 is 94739438.

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

It is a cyclic number.

It is not a de Polignac number, because 83493749 - 2⁸ = 83493493 is a prime.

It is a super-2 number, since 2×83493749² = 13942412244150002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83493149) 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, 106379 + ... + 107160.

It is an arithmetic number, because the mean of its divisors is an integer number (11531160).

Almost surely, 2^83493749 is an apocalyptic number.

It is an amenable number.

83493749 is a deficient number, since it is larger than the sum of its proper divisors (8755531).

83493749 is a wasteful number, since it uses less digits than its factorization.

83493749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213579.

The product of its digits is 653184, while the sum is 47.

The square root of 83493749 is about 9137.4913953448. The cubic root of 83493749 is about 437.0703247054.

The spelling of 83493749 in words is "eighty-three million, four hundred ninety-three thousand, seven hundred forty-nine".