83708149 has 8 divisors (see below), whose sum is σ = 96742080. Its totient is φ = 70943136.

The previous prime is 83708089. The next prime is 83708159. The reversal of 83708149 is 94180738.

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 83708149 - 2⁷ = 83708021 is a prime.

It is a super-3 number, since 3×83708149³ (a number of 25 digits) contains 333 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 (83708159) 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, 66559 + ... + 67804.

It is an arithmetic number, because the mean of its divisors is an integer number (12092760).

Almost surely, 2^83708149 is an apocalyptic number.

83708149 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

83708149 is a deficient number, since it is larger than the sum of its proper divisors (13033931).

83708149 is a wasteful number, since it uses less digits than its factorization.

83708149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134459.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 83708149 is about 9149.2157587413. The cubic root of 83708149 is about 437.4441162906. Note that the first 3 decimals are identical.

The spelling of 83708149 in words is "eighty-three million, seven hundred eight thousand, one hundred forty-nine".