77998201 has 8 divisors (see below), whose sum is σ = 81536000. Its totient is φ = 74524320.

The previous prime is 77998189. The next prime is 77998213. The reversal of 77998201 is 10289977.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (77998189) and next prime (77998213).

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 77998201 - 2⁵ = 77998169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77998231) 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, 13476 + ... + 18373.

It is an arithmetic number, because the mean of its divisors is an integer number (10192000).

Almost surely, 2^77998201 is an apocalyptic number.

It is an amenable number.

77998201 is a deficient number, since it is larger than the sum of its proper divisors (3537799).

77998201 is a wasteful number, since it uses less digits than its factorization.

77998201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31959.

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 77998201 is about 8831.6590174214. The cubic root of 77998201 is about 427.2625833099.

The spelling of 77998201 in words is "seventy-seven million, nine hundred ninety-eight thousand, two hundred one".