63397351 has 4 divisors (see below), whose sum is σ = 64871752. Its totient is φ = 61922952.

The previous prime is 63397349. The next prime is 63397363. The reversal of 63397351 is 15379336.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63397351 - 2¹ = 63397349 is a prime.

It is a super-2 number, since 2×63397351² = 8038448227634402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63397351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63397331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 737136 + ... + 737221.

It is an arithmetic number, because the mean of its divisors is an integer number (16217938).

Almost surely, 2^63397351 is an apocalyptic number.

63397351 is a deficient number, since it is larger than the sum of its proper divisors (1474401).

63397351 is a wasteful number, since it uses less digits than its factorization.

63397351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474400.

The product of its digits is 51030, while the sum is 37.

The square root of 63397351 is about 7962.2453491462. The cubic root of 63397351 is about 398.7405196856.

The spelling of 63397351 in words is "sixty-three million, three hundred ninety-seven thousand, three hundred fifty-one".