722273047 has 2 divisors, whose sum is σ = 722273048. Its totient is φ = 722273046.

The previous prime is 722273039. The next prime is 722273053. The reversal of 722273047 is 740372227.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 722273047 - 2³ = 722273039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722273077) 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, 361136523 + 361136524.

It is an arithmetic number, because the mean of its divisors is an integer number (361136524).

Almost surely, 2^722273047 is an apocalyptic number.

722273047 is a deficient number, since it is larger than the sum of its proper divisors (1).

722273047 is an equidigital number, since it uses as much as digits as its factorization.

722273047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32928, while the sum is 34.

The square root of 722273047 is about 26875.1380833662. The cubic root of 722273047 is about 897.2231477197.

The spelling of 722273047 in words is "seven hundred twenty-two million, two hundred seventy-three thousand, forty-seven".