70493977 has 2 divisors, whose sum is σ = 70493978. Its totient is φ = 70493976.

The previous prime is 70493903. The next prime is 70493993. The reversal of 70493977 is 77939407.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40144896 + 30349081 = 6336^2 + 5509^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70493977 is a prime.

It is not a weakly prime, because it can be changed into another prime (70493077) 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 as a sum of consecutive naturals, namely, 35246988 + 35246989.

It is an arithmetic number, because the mean of its divisors is an integer number (35246989).

Almost surely, 2^70493977 is an apocalyptic number.

It is an amenable number.

70493977 is a deficient number, since it is larger than the sum of its proper divisors (1).

70493977 is an equidigital number, since it uses as much as digits as its factorization.

70493977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 333396, while the sum is 46.

The square root of 70493977 is about 8396.0691397820. The cubic root of 70493977 is about 413.0956966634.

It can be divided in two parts, 7049 and 3977, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 70493977 in words is "seventy million, four hundred ninety-three thousand, nine hundred seventy-seven".