83772955 has 16 divisors (see below), whose sum is σ = 115197120. Its totient is φ = 57290112.

The previous prime is 83772917. The next prime is 83772959. The reversal of 83772955 is 55927738.

It is a cyclic number.

It is not a de Polignac number, because 83772955 - 2¹⁵ = 83740187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83772959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10881 + ... + 16909.

It is an arithmetic number, because the mean of its divisors is an integer number (7199820).

Almost surely, 2^83772955 is an apocalyptic number.

83772955 is a deficient number, since it is larger than the sum of its proper divisors (31424165).

83772955 is a wasteful number, since it uses less digits than its factorization.

83772955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6438.

The product of its digits is 529200, while the sum is 46.

The square root of 83772955 is about 9152.7566885611. The cubic root of 83772955 is about 437.5569754369.

The spelling of 83772955 in words is "eighty-three million, seven hundred seventy-two thousand, nine hundred fifty-five".