31420463 has 2 divisors, whose sum is σ = 31420464. Its totient is φ = 31420462.

The previous prime is 31420457. The next prime is 31420469. The reversal of 31420463 is 36402413.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (31420457) and next prime (31420469).

It is a cyclic number.

It is not a de Polignac number, because 31420463 - 2⁴ = 31420447 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31420469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15710231 + 15710232.

It is an arithmetic number, because the mean of its divisors is an integer number (15710232).

Almost surely, 2^31420463 is an apocalyptic number.

31420463 is a deficient number, since it is larger than the sum of its proper divisors (1).

31420463 is an equidigital number, since it uses as much as digits as its factorization.

31420463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 31420463 is about 5605.3958825403. The cubic root of 31420463 is about 315.5519440495.

Adding to 31420463 its reverse (36402413), we get a palindrome (67822876).

The spelling of 31420463 in words is "thirty-one million, four hundred twenty thousand, four hundred sixty-three".