84431403 has 40 divisors (see below), whose sum is σ = 147538688. Its totient is φ = 47110896.

The previous prime is 84431371. The next prime is 84431407. The reversal of 84431403 is 30413448.

It is not a de Polignac number, because 84431403 - 2⁵ = 84431371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84431407) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 22650 + ... + 26112.

Almost surely, 2^84431403 is an apocalyptic number.

84431403 is a deficient number, since it is larger than the sum of its proper divisors (63107285).

84431403 is a wasteful number, since it uses less digits than its factorization.

84431403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3525 (or 3516 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 84431403 is about 9188.6562129617. The cubic root of 84431403 is about 438.7003713315.

The spelling of 84431403 in words is "eighty-four million, four hundred thirty-one thousand, four hundred three".