70722773 has 4 divisors (see below), whose sum is σ = 77152128. Its totient is φ = 64293420.

The previous prime is 70722767. The next prime is 70722779. The reversal of 70722773 is 37722707.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (70722767) and next prime (70722779).

It is a cyclic number.

It is not a de Polignac number, because 70722773 - 2⁶ = 70722709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70722779) 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 3 ways as a sum of consecutive naturals, for example, 3214661 + ... + 3214682.

It is an arithmetic number, because the mean of its divisors is an integer number (19288032).

Almost surely, 2^70722773 is an apocalyptic number.

It is an amenable number.

70722773 is a deficient number, since it is larger than the sum of its proper divisors (6429355).

70722773 is a wasteful number, since it uses less digits than its factorization.

70722773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6429354.

The product of its (nonzero) digits is 28812, while the sum is 35.

The square root of 70722773 is about 8409.6832877344. The cubic root of 70722773 is about 413.5421299543.

The spelling of 70722773 in words is "seventy million, seven hundred twenty-two thousand, seven hundred seventy-three".