70614728 has 12 divisors (see below), whose sum is σ = 132447195. Its totient is φ = 35295480.

The previous prime is 70614721. The next prime is 70614743. The reversal of 70614728 is 82741607.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 35307364 + 35307364 = 5942^2 + 5942^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=5942.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70614721) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 22283 + ... + 25253.

Almost surely, 2^70614728 is an apocalyptic number.

It is an amenable number.

70614728 is a deficient number, since it is larger than the sum of its proper divisors (61832467).

70614728 is an frugal number, since it uses more digits than its factorization.

70614728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5948 (or 2973 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 70614728 is about 8403.2569876209. The cubic root of 70614728 is about 413.3314296363.

The spelling of 70614728 in words is "seventy million, six hundred fourteen thousand, seven hundred twenty-eight".