84214780 has 24 divisors (see below), whose sum is σ = 190455552. Its totient is φ = 31094592.

The previous prime is 84214777. The next prime is 84214813. The reversal of 84214780 is 8741248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161692 + ... + 162211.

It is an arithmetic number, because the mean of its divisors is an integer number (7935648).

Almost surely, 2^84214780 is an apocalyptic number.

It is an amenable number.

84214780 is an abundant number, since it is smaller than the sum of its proper divisors (106240772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84214780 is a wasteful number, since it uses less digits than its factorization.

84214780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323925 (or 323923 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 84214780 is about 9176.8611191409. The cubic root of 84214780 is about 438.3248634152.

The spelling of 84214780 in words is "eighty-four million, two hundred fourteen thousand, seven hundred eighty".