70022431 has 2 divisors, whose sum is σ = 70022432. Its totient is φ = 70022430.

The previous prime is 70022423. The next prime is 70022453. The reversal of 70022431 is 13422007.

It is a weak prime.

It is an emirp because it is prime and its reverse (13422007) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70022431 - 2³ = 70022423 is a prime.

It is a super-2 number, since 2×70022431² = 9806281686299522, which contains 22 as substring.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 70022399 and 70022408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70022411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35011215 + 35011216.

It is an arithmetic number, because the mean of its divisors is an integer number (35011216).

Almost surely, 2^70022431 is an apocalyptic number.

70022431 is a deficient number, since it is larger than the sum of its proper divisors (1).

70022431 is an equidigital number, since it uses as much as digits as its factorization.

70022431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 70022431 is about 8367.9406666157. The cubic root of 70022431 is about 412.1725464942.

Adding to 70022431 its reverse (13422007), we get a palindrome (83444438).

The spelling of 70022431 in words is "seventy million, twenty-two thousand, four hundred thirty-one".