63430031 has 8 divisors (see below), whose sum is σ = 74177664. Its totient is φ = 53103960.

The previous prime is 63430027. The next prime is 63430063. The reversal of 63430031 is 13003436.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63430031 - 2² = 63430027 is a prime.

It is a super-2 number, since 2×63430031² = 8046737665321922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63429985 and 63430012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63430231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105065 + ... + 105666.

It is an arithmetic number, because the mean of its divisors is an integer number (9272208).

Almost surely, 2^63430031 is an apocalyptic number.

63430031 is a deficient number, since it is larger than the sum of its proper divisors (10747633).

63430031 is a wasteful number, since it uses less digits than its factorization.

63430031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210781.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 63430031 is about 7964.2972696905. The cubic root of 63430031 is about 398.8090220314.

Adding to 63430031 its reverse (13003436), we get a palindrome (76433467).

The spelling of 63430031 in words is "sixty-three million, four hundred thirty thousand, thirty-one".