78133603 has 8 divisors (see below), whose sum is σ = 80356320. Its totient is φ = 75916800.

The previous prime is 78133589. The next prime is 78133613. The reversal of 78133603 is 30633187.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78133603 - 2⁵ = 78133571 is a prime.

It is a super-2 number, since 2×78133603² = 12209719835523218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78133613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48003 + ... + 49603.

It is an arithmetic number, because the mean of its divisors is an integer number (10044540).

Almost surely, 2^78133603 is an apocalyptic number.

78133603 is a deficient number, since it is larger than the sum of its proper divisors (2222717).

78133603 is a wasteful number, since it uses less digits than its factorization.

78133603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 78133603 is about 8839.3214106061. The cubic root of 78133603 is about 427.5096777445.

The spelling of 78133603 in words is "seventy-eight million, one hundred thirty-three thousand, six hundred three".