70715028 has 24 divisors (see below), whose sum is σ = 165461632. Its totient is φ = 23505984.

The previous prime is 70715023. The next prime is 70715063. The reversal of 70715028 is 82051707.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 70714986 and 70715004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70715023) by changing a digit.

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, 3625 + ... + 12432.

Almost surely, 2^70715028 is an apocalyptic number.

It is an amenable number.

70715028 is an abundant number, since it is smaller than the sum of its proper divisors (94746604).

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

70715028 is a wasteful number, since it uses less digits than its factorization.

70715028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16431 (or 16429 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 70715028 is about 8409.2227940518. Note that the first 3 decimals coincide. The cubic root of 70715028 is about 413.5270334463.

The spelling of 70715028 in words is "seventy million, seven hundred fifteen thousand, twenty-eight".