84263720 has 32 divisors (see below), whose sum is σ = 197838720. Its totient is φ = 32239680.

The previous prime is 84263719. The next prime is 84263737. The reversal of 84263720 is 2736248.

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, 44876 + ... + 46715.

It is an arithmetic number, because the mean of its divisors is an integer number (6182460).

Almost surely, 2^84263720 is an apocalyptic number.

It is an amenable number.

84263720 is an abundant number, since it is smaller than the sum of its proper divisors (113575000).

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

84263720 is a wasteful number, since it uses less digits than its factorization.

84263720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91625 (or 91621 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 84263720 is about 9179.5272209412. The cubic root of 84263720 is about 438.4097553417.

Adding to 84263720 its reverse (2736248), we get a palindrome (86999968).

The spelling of 84263720 in words is "eighty-four million, two hundred sixty-three thousand, seven hundred twenty".