70280648 has 16 divisors (see below), whose sum is σ = 133082460. Its totient is φ = 34792000.

The previous prime is 70280647. The next prime is 70280653. The reversal of 70280648 is 84608207.

It can be written as a sum of positive squares in 2 ways, for example, as 69923044 + 357604 = 8362^2 + 598^2 .

It is not an unprimeable number, because it can be changed into a prime (70280647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42683 + ... + 44298.

Almost surely, 2^70280648 is an apocalyptic number.

It is an amenable number.

70280648 is a deficient number, since it is larger than the sum of its proper divisors (62801812).

70280648 is a wasteful number, since it uses less digits than its factorization.

70280648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87088 (or 87084 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 70280648 is about 8383.3554141525. The cubic root of 70280648 is about 412.6785719654.

The spelling of 70280648 in words is "seventy million, two hundred eighty thousand, six hundred forty-eight".