83955407 has 4 divisors (see below), whose sum is σ = 85378440. Its totient is φ = 82532376.

The previous prime is 83955379. The next prime is 83955419. The reversal of 83955407 is 70455938.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83955407 - 2¹⁸ = 83693263 is a prime.

It is a super-3 number, since 3×83955407³ (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 (83955427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711428 + ... + 711545.

It is an arithmetic number, because the mean of its divisors is an integer number (21344610).

Almost surely, 2^83955407 is an apocalyptic number.

83955407 is a deficient number, since it is larger than the sum of its proper divisors (1423033).

83955407 is a wasteful number, since it uses less digits than its factorization.

83955407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423032.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 83955407 is about 9162.7183193635. The cubic root of 83955407 is about 437.8744018991.

The spelling of 83955407 in words is "eighty-three million, nine hundred fifty-five thousand, four hundred seven".