63620351 has 2 divisors, whose sum is σ = 63620352. Its totient is φ = 63620350.

The previous prime is 63620329. The next prime is 63620371. The reversal of 63620351 is 15302636.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63620351 - 2²² = 59426047 is a prime.

It is a super-2 number, since 2×63620351² = 8095098122726402, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63620351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63620311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31810175 + 31810176.

It is an arithmetic number, because the mean of its divisors is an integer number (31810176).

Almost surely, 2^63620351 is an apocalyptic number.

63620351 is a deficient number, since it is larger than the sum of its proper divisors (1).

63620351 is an equidigital number, since it uses as much as digits as its factorization.

63620351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 63620351 is about 7976.2366439318. The cubic root of 63620351 is about 399.2074954617.

Adding to 63620351 its reverse (15302636), we get a palindrome (78922987).

The spelling of 63620351 in words is "sixty-three million, six hundred twenty thousand, three hundred fifty-one".