63430371 has 20 divisors (see below), whose sum is σ = 97814464. Its totient is φ = 40921200.

The previous prime is 63430351. The next prime is 63430391. The reversal of 63430371 is 17303436.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (63430351) and next prime (63430391).

It is not a de Polignac number, because 63430371 - 2²¹ = 61333219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63430351) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10120 + ... + 15141.

Almost surely, 2^63430371 is an apocalyptic number.

63430371 is a deficient number, since it is larger than the sum of its proper divisors (34384093).

63430371 is a wasteful number, since it uses less digits than its factorization.

63430371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25304 (or 25295 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 63430371 is about 7964.3186149224. The cubic root of 63430371 is about 398.8097346005.

The spelling of 63430371 in words is "sixty-three million, four hundred thirty thousand, three hundred seventy-one".