83663901 has 16 divisors (see below), whose sum is σ = 126585600. Its totient is φ = 54588384.

The previous prime is 83663863. The next prime is 83663911. The reversal of 83663901 is 10936638.

It is a happy number.

It is not a de Polignac number, because 83663901 - 2¹³ = 83655709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83663911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31696 + ... + 34233.

It is an arithmetic number, because the mean of its divisors is an integer number (7911600).

Almost surely, 2^83663901 is an apocalyptic number.

It is an amenable number.

83663901 is a deficient number, since it is larger than the sum of its proper divisors (42921699).

83663901 is a wasteful number, since it uses less digits than its factorization.

83663901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65985 (or 65979 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 83663901 is about 9146.7973083479. The cubic root of 83663901 is about 437.3670252745.

The spelling of 83663901 in words is "eighty-three million, six hundred sixty-three thousand, nine hundred one".