70583431 has 2 divisors, whose sum is σ = 70583432. Its totient is φ = 70583430.

The previous prime is 70583417. The next prime is 70583441. The reversal of 70583431 is 13438507.

It is a strong prime.

It is an emirp because it is prime and its reverse (13438507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70583431 - 2⁵ = 70583399 is a prime.

It is a super-2 number, since 2×70583431² = 9964041463463522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70583393 and 70583402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70583441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35291715 + 35291716.

It is an arithmetic number, because the mean of its divisors is an integer number (35291716).

Almost surely, 2^70583431 is an apocalyptic number.

70583431 is a deficient number, since it is larger than the sum of its proper divisors (1).

70583431 is an equidigital number, since it uses as much as digits as its factorization.

70583431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 70583431 is about 8401.3945866148. The cubic root of 70583431 is about 413.2703567048.

The spelling of 70583431 in words is "seventy million, five hundred eighty-three thousand, four hundred thirty-one".