84291451 has 4 divisors (see below), whose sum is σ = 84541912. Its totient is φ = 84040992.

The previous prime is 84291433. The next prime is 84291461. The reversal of 84291451 is 15419248.

It is a happy number.

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 84291451 - 2⁷ = 84291323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84291461) 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, 124725 + ... + 125398.

It is an arithmetic number, because the mean of its divisors is an integer number (21135478).

Almost surely, 2^84291451 is an apocalyptic number.

84291451 is a deficient number, since it is larger than the sum of its proper divisors (250461).

84291451 is a wasteful number, since it uses less digits than its factorization.

84291451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250460.

The product of its digits is 11520, while the sum is 34.

The square root of 84291451 is about 9181.0375775290. The cubic root of 84291451 is about 438.4578432871.

The spelling of 84291451 in words is "eighty-four million, two hundred ninety-one thousand, four hundred fifty-one".