83400454 has 4 divisors (see below), whose sum is σ = 125100684. Its totient is φ = 41700226.

The previous prime is 83400451. The next prime is 83400463. The reversal of 83400454 is 45400438.

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

It is a super-2 number, since 2×83400454² = 13911271454812232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83400451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20850112 + ... + 20850115.

It is an arithmetic number, because the mean of its divisors is an integer number (31275171).

Almost surely, 2^83400454 is an apocalyptic number.

83400454 is a deficient number, since it is larger than the sum of its proper divisors (41700230).

83400454 is a wasteful number, since it uses less digits than its factorization.

83400454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41700229.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 83400454 is about 9132.3849020943. The cubic root of 83400454 is about 436.9074715035.

The spelling of 83400454 in words is "eighty-three million, four hundred thousand, four hundred fifty-four".