70707650 has 48 divisors (see below), whose sum is σ = 142652328. Its totient is φ = 25920000.

The previous prime is 70707649. The next prime is 70707653. The reversal of 70707650 is 5670707.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 667489 + 70040161 = 817^2 + 8369^2 .

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70707653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117350 + ... + 117950.

Almost surely, 2^70707650 is an apocalyptic number.

70707650 is an abundant number, since it is smaller than the sum of its proper divisors (71944678).

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

70707650 is a wasteful number, since it uses less digits than its factorization.

70707650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807 (or 802 counting only the distinct ones).

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 70707650 is about 8408.7840975970. The cubic root of 70707650 is about 413.5126512673.

The spelling of 70707650 in words is "seventy million, seven hundred seven thousand, six hundred fifty".