70722469 has 2 divisors, whose sum is σ = 70722470. Its totient is φ = 70722468.

The previous prime is 70722467. The next prime is 70722479. The reversal of 70722469 is 96422707.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57304900 + 13417569 = 7570^2 + 3663^2 .

It is a cyclic number.

It is not a de Polignac number, because 70722469 - 2¹ = 70722467 is a prime.

It is a super-2 number, since 2×70722469² = 10003335242911922, which contains 22 as substring.

Together with 70722467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70722467) 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, 35361234 + 35361235.

It is an arithmetic number, because the mean of its divisors is an integer number (35361235).

Almost surely, 2^70722469 is an apocalyptic number.

It is an amenable number.

70722469 is a deficient number, since it is larger than the sum of its proper divisors (1).

70722469 is an equidigital number, since it uses as much as digits as its factorization.

70722469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 70722469 is about 8409.6652133126. The cubic root of 70722469 is about 413.5415374201.

The spelling of 70722469 in words is "seventy million, seven hundred twenty-two thousand, four hundred sixty-nine".