78881033 has 12 divisors (see below), whose sum is σ = 100102032. Its totient is φ = 61465320.

The previous prime is 78881029. The next prime is 78881051. The reversal of 78881033 is 33018887.

It is not a de Polignac number, because 78881033 - 2² = 78881029 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78881083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72635 + ... + 73712.

It is an arithmetic number, because the mean of its divisors is an integer number (8341836).

Almost surely, 2^78881033 is an apocalyptic number.

It is an amenable number.

78881033 is a deficient number, since it is larger than the sum of its proper divisors (21220999).

78881033 is a wasteful number, since it uses less digits than its factorization.

78881033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146372 (or 146365 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 78881033 is about 8881.4994792546. The cubic root of 78881033 is about 428.8685469778.

The spelling of 78881033 in words is "seventy-eight million, eight hundred eighty-one thousand, thirty-three".