83925945 has 48 divisors (see below), whose sum is σ = 154776960. Its totient is φ = 41948928.

The previous prime is 83925937. The next prime is 83925949. The reversal of 83925945 is 54952938.

It is not a de Polignac number, because 83925945 - 2³ = 83925937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 83925945.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83925949) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87589 + ... + 88541.

It is an arithmetic number, because the mean of its divisors is an integer number (3224520).

Almost surely, 2^83925945 is an apocalyptic number.

It is an amenable number.

83925945 is a deficient number, since it is larger than the sum of its proper divisors (70851015).

83925945 is a wasteful number, since it uses less digits than its factorization.

83925945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086 (or 1083 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 83925945 is about 9161.1104676235. The cubic root of 83925945 is about 437.8231756373.

The spelling of 83925945 in words is "eighty-three million, nine hundred twenty-five thousand, nine hundred forty-five".