83699421 has 8 divisors (see below), whose sum is σ = 120183840. Its totient is φ = 51507312.

The previous prime is 83699419. The next prime is 83699443. The reversal of 83699421 is 12499638.

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

It is not a de Polignac number, because 83699421 - 2¹ = 83699419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83699401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1073031 + ... + 1073108.

It is an arithmetic number, because the mean of its divisors is an integer number (15022980).

Almost surely, 2^83699421 is an apocalyptic number.

It is an amenable number.

83699421 is a deficient number, since it is larger than the sum of its proper divisors (36484419).

83699421 is a wasteful number, since it uses less digits than its factorization.

83699421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146155.

The product of its digits is 93312, while the sum is 42.

The square root of 83699421 is about 9148.7387655348. The cubic root of 83699421 is about 437.4289120960.

The spelling of 83699421 in words is "eighty-three million, six hundred ninety-nine thousand, four hundred twenty-one".