78013401 has 8 divisors (see below), whose sum is σ = 108540480. Its totient is φ = 49747632.

The previous prime is 78013381. The next prime is 78013423. The reversal of 78013401 is 10431087.

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

It is not a de Polignac number, because 78013401 - 2⁶ = 78013337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78013471) 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, 565246 + ... + 565383.

It is an arithmetic number, because the mean of its divisors is an integer number (13567560).

Almost surely, 2^78013401 is an apocalyptic number.

It is an amenable number.

78013401 is a deficient number, since it is larger than the sum of its proper divisors (30527079).

78013401 is a wasteful number, since it uses less digits than its factorization.

78013401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130655.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 78013401 is about 8832.5195159705. The cubic root of 78013401 is about 427.2903359562.

Adding to 78013401 its reverse (10431087), we get a palindrome (88444488).

The spelling of 78013401 in words is "seventy-eight million, thirteen thousand, four hundred one".