70480909 has 2 divisors, whose sum is σ = 70480910. Its totient is φ = 70480908.

The previous prime is 70480859. The next prime is 70480973. The reversal of 70480909 is 90908407.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50722884 + 19758025 = 7122^2 + 4445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70480909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70480979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35240454 + 35240455.

It is an arithmetic number, because the mean of its divisors is an integer number (35240455).

Almost surely, 2^70480909 is an apocalyptic number.

It is an amenable number.

70480909 is a deficient number, since it is larger than the sum of its proper divisors (1).

70480909 is an equidigital number, since it uses as much as digits as its factorization.

70480909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 70480909 is about 8395.2908823935. The cubic root of 70480909 is about 413.0701688647.

The spelling of 70480909 in words is "seventy million, four hundred eighty thousand, nine hundred nine".