84748720 has 40 divisors (see below), whose sum is σ = 225190944. Its totient is φ = 29056512.

The previous prime is 84748711. The next prime is 84748739. The reversal of 84748720 is 2784748.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75109 + ... + 76228.

Almost surely, 2^84748720 is an apocalyptic number.

84748720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84748720 is an abundant number, since it is smaller than the sum of its proper divisors (140442224).

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

84748720 is a wasteful number, since it uses less digits than its factorization.

84748720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151357 (or 151351 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 40.

The square root of 84748720 is about 9205.9067994413. The cubic root of 84748720 is about 439.2492707965.

The spelling of 84748720 in words is "eighty-four million, seven hundred forty-eight thousand, seven hundred twenty".