75663106 has 4 divisors (see below), whose sum is σ = 113494662. Its totient is φ = 37831552.

The previous prime is 75663103. The next prime is 75663109. The reversal of 75663106 is 60136657.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60136657 = 7 ⋅8590951.

It is an interprime number because it is at equal distance from previous prime (75663103) and next prime (75663109).

It can be written as a sum of positive squares in only one way, i.e., 57896881 + 17766225 = 7609^2 + 4215^2 .

It is not an unprimeable number, because it can be changed into a prime (75663103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18915775 + ... + 18915778.

Almost surely, 2^75663106 is an apocalyptic number.

75663106 is a deficient number, since it is larger than the sum of its proper divisors (37831556).

75663106 is a wasteful number, since it uses less digits than its factorization.

75663106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37831555.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 75663106 is about 8698.4542304941. The cubic root of 75663106 is about 422.9555438043.

The spelling of 75663106 in words is "seventy-five million, six hundred sixty-three thousand, one hundred six".