75007663 has 2 divisors, whose sum is σ = 75007664. Its totient is φ = 75007662.

The previous prime is 75007661. The next prime is 75007679. The reversal of 75007663 is 36670057.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75007663 - 2¹ = 75007661 is a prime.

It is a super-2 number, since 2×75007663² = 11252299017443138, which contains 22 as substring.

Together with 75007661, it forms a pair of twin primes.

It is equal to p_4394743 and since 75007663 and 4394743 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75007661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37503831 + 37503832.

It is an arithmetic number, because the mean of its divisors is an integer number (37503832).

Almost surely, 2^75007663 is an apocalyptic number.

75007663 is a deficient number, since it is larger than the sum of its proper divisors (1).

75007663 is an equidigital number, since it uses as much as digits as its factorization.

75007663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 75007663 is about 8660.6964500553. The cubic root of 75007663 is about 421.7306948829.

The spelling of 75007663 in words is "seventy-five million, seven thousand, six hundred sixty-three".