786748428 has 36 divisors (see below), whose sum is σ = 2093396760. Its totient is φ = 248446656.

The previous prime is 786748387. The next prime is 786748433. The reversal of 786748428 is 824847687.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 574425 + ... + 575792.

It is an arithmetic number, because the mean of its divisors is an integer number (58149910).

Almost surely, 2^786748428 is an apocalyptic number.

It is an amenable number.

786748428 is an abundant number, since it is smaller than the sum of its proper divisors (1306648332).

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

786748428 is a wasteful number, since it uses less digits than its factorization.

786748428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150246 (or 1150241 counting only the distinct ones).

The product of its digits is 4816896, while the sum is 54.

The square root of 786748428 is about 28049.0361331722. The cubic root of 786748428 is about 923.1635061797.

The spelling of 786748428 in words is "seven hundred eighty-six million, seven hundred forty-eight thousand, four hundred twenty-eight".