63321407 has 2 divisors, whose sum is σ = 63321408. Its totient is φ = 63321406.

The previous prime is 63321373. The next prime is 63321439. The reversal of 63321407 is 70412336.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63321407 - 2¹⁴ = 63305023 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 (63321457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31660703 + 31660704.

It is an arithmetic number, because the mean of its divisors is an integer number (31660704).

Almost surely, 2^63321407 is an apocalyptic number.

63321407 is a deficient number, since it is larger than the sum of its proper divisors (1).

63321407 is an equidigital number, since it uses as much as digits as its factorization.

63321407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 63321407 is about 7957.4749135640. The cubic root of 63321407 is about 398.5812383212.

The spelling of 63321407 in words is "sixty-three million, three hundred twenty-one thousand, four hundred seven".