73801563 has 16 divisors (see below), whose sum is σ = 108710400. Its totient is φ = 44160480.

The previous prime is 73801561. The next prime is 73801571. The reversal of 73801563 is 36510837.

It is a happy number.

It is not a de Polignac number, because 73801563 - 2¹ = 73801561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (73801561) 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, 11548 + ... + 16761.

It is an arithmetic number, because the mean of its divisors is an integer number (6794400).

Almost surely, 2^73801563 is an apocalyptic number.

73801563 is a deficient number, since it is larger than the sum of its proper divisors (34908837).

73801563 is a wasteful number, since it uses less digits than its factorization.

73801563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28402.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 73801563 is about 8590.7836080302. The cubic root of 73801563 is about 419.4580367853.

The spelling of 73801563 in words is "seventy-three million, eight hundred one thousand, five hundred sixty-three".