77700147 has 16 divisors (see below), whose sum is σ = 119001600. Its totient is φ = 44174592.

The previous prime is 77700143. The next prime is 77700151. The reversal of 77700147 is 74100777.

It is an interprime number because it is at equal distance from previous prime (77700143) and next prime (77700151).

It is not a de Polignac number, because 77700147 - 2² = 77700143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77700143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5118 + ... + 13475.

It is an arithmetic number, because the mean of its divisors is an integer number (7437600).

Almost surely, 2^77700147 is an apocalyptic number.

77700147 is a deficient number, since it is larger than the sum of its proper divisors (41301453).

77700147 is a wasteful number, since it uses less digits than its factorization.

77700147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18802.

The product of its (nonzero) digits is 9604, while the sum is 33.

The square root of 77700147 is about 8814.7686866985. The cubic root of 77700147 is about 426.7176567343.

The spelling of 77700147 in words is "seventy-seven million, seven hundred thousand, one hundred forty-seven".