70723357 has 2 divisors, whose sum is σ = 70723358. Its totient is φ = 70723356.

The previous prime is 70723351. The next prime is 70723361. The reversal of 70723357 is 75332707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46703556 + 24019801 = 6834^2 + 4901^2 .

It is a cyclic number.

It is not a de Polignac number, because 70723357 - 2¹⁵ = 70690589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70723351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35361678 + 35361679.

It is an arithmetic number, because the mean of its divisors is an integer number (35361679).

Almost surely, 2^70723357 is an apocalyptic number.

It is an amenable number.

70723357 is a deficient number, since it is larger than the sum of its proper divisors (1).

70723357 is an equidigital number, since it uses as much as digits as its factorization.

70723357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30870, while the sum is 34.

The square root of 70723357 is about 8409.7180095411. The cubic root of 70723357 is about 413.5432682389.

The spelling of 70723357 in words is "seventy million, seven hundred twenty-three thousand, three hundred fifty-seven".