878003401 has 8 divisors (see below), whose sum is σ = 958132224. Its totient is φ = 797926320.

The previous prime is 878003389. The next prime is 878003411. The reversal of 878003401 is 104300878.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-878003401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (878003411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28275 + ... + 50551.

It is an arithmetic number, because the mean of its divisors is an integer number (119766528).

Almost surely, 2^878003401 is an apocalyptic number.

It is an amenable number.

878003401 is a deficient number, since it is larger than the sum of its proper divisors (80128823).

878003401 is a wasteful number, since it uses less digits than its factorization.

878003401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25871.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 878003401 is about 29631.1221690978. The cubic root of 878003401 is about 957.5586844212.

The spelling of 878003401 in words is "eight hundred seventy-eight million, three thousand, four hundred one".