70320773 has 2 divisors, whose sum is σ = 70320774. Its totient is φ = 70320772.

The previous prime is 70320763. The next prime is 70320787. The reversal of 70320773 is 37702307.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43467649 + 26853124 = 6593^2 + 5182^2 .

It is a cyclic number.

It is not a de Polignac number, because 70320773 - 2⁶ = 70320709 is a prime.

It is a super-2 number, since 2×70320773² = 9890022230635058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70320703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35160386 + 35160387.

It is an arithmetic number, because the mean of its divisors is an integer number (35160387).

Almost surely, 2^70320773 is an apocalyptic number.

It is an amenable number.

70320773 is a deficient number, since it is larger than the sum of its proper divisors (1).

70320773 is an equidigital number, since it uses as much as digits as its factorization.

70320773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6174, while the sum is 29.

The square root of 70320773 is about 8385.7482075245. The cubic root of 70320773 is about 412.7570932365.

The spelling of 70320773 in words is "seventy million, three hundred twenty thousand, seven hundred seventy-three".