77900003 has 4 divisors (see below), whose sum is σ = 80586240. Its totient is φ = 75213768.

The previous prime is 77899999. The next prime is 77900051. The reversal of 77900003 is 30000977.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77900003 - 2² = 77899999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77902003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1343075 + ... + 1343132.

It is an arithmetic number, because the mean of its divisors is an integer number (20146560).

Almost surely, 2^77900003 is an apocalyptic number.

77900003 is a deficient number, since it is larger than the sum of its proper divisors (2686237).

77900003 is a wasteful number, since it uses less digits than its factorization.

77900003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2686236.

The product of its (nonzero) digits is 1323, while the sum is 26.

The square root of 77900003 is about 8826.0978353970. The cubic root of 77900003 is about 427.0832033144.

The spelling of 77900003 in words is "seventy-seven million, nine hundred thousand, three".