31422463 has 2 divisors, whose sum is σ = 31422464. Its totient is φ = 31422462.

The previous prime is 31422403. The next prime is 31422473. The reversal of 31422463 is 36422413.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31422463 - 2¹⁷ = 31291391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31422403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15711231 + 15711232.

It is an arithmetic number, because the mean of its divisors is an integer number (15711232).

Almost surely, 2^31422463 is an apocalyptic number.

31422463 is a deficient number, since it is larger than the sum of its proper divisors (1).

31422463 is an equidigital number, since it uses as much as digits as its factorization.

31422463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 25.

The square root of 31422463 is about 5605.5742792331. The cubic root of 31422463 is about 315.5586391609.

Adding to 31422463 its reverse (36422413), we get a palindrome (67844876).

The spelling of 31422463 in words is "thirty-one million, four hundred twenty-two thousand, four hundred sixty-three".