63432739 has 2 divisors, whose sum is σ = 63432740. Its totient is φ = 63432738.

The previous prime is 63432713. The next prime is 63432757. The reversal of 63432739 is 93723436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63432739 - 2¹⁵ = 63399971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63432698 and 63432707.

It is not a weakly prime, because it can be changed into another prime (63432709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31716369 + 31716370.

It is an arithmetic number, because the mean of its divisors is an integer number (31716370).

Almost surely, 2^63432739 is an apocalyptic number.

63432739 is a deficient number, since it is larger than the sum of its proper divisors (1).

63432739 is an equidigital number, since it uses as much as digits as its factorization.

63432739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 37.

The square root of 63432739 is about 7964.4672765980. The cubic root of 63432739 is about 398.8146973635.

The spelling of 63432739 in words is "sixty-three million, four hundred thirty-two thousand, seven hundred thirty-nine".