84399470 has 8 divisors (see below), whose sum is σ = 151919064. Its totient is φ = 33759784.

The previous prime is 84399467. The next prime is 84399493. The reversal of 84399470 is 7499348.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4219964 + ... + 4219983.

It is an arithmetic number, because the mean of its divisors is an integer number (18989883).

Almost surely, 2^84399470 is an apocalyptic number.

84399470 is a deficient number, since it is larger than the sum of its proper divisors (67519594).

84399470 is a wasteful number, since it uses less digits than its factorization.

84399470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8439954.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 84399470 is about 9186.9184169666. The cubic root of 84399470 is about 438.6450570568.

The spelling of 84399470 in words is "eighty-four million, three hundred ninety-nine thousand, four hundred seventy".