12000077 has 4 divisors (see below), whose sum is σ = 12631680. Its totient is φ = 11368476.

The previous prime is 12000073. The next prime is 12000091. The reversal of 12000077 is 77000021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12000077 - 2² = 12000073 is a prime.

It is a super-3 number, since 3×12000077³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

12000077 is a modest number, since divided by 77 gives 12 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000073) 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, 315773 + ... + 315810.

It is an arithmetic number, because the mean of its divisors is an integer number (3157920).

Almost surely, 2^12000077 is an apocalyptic number.

It is an amenable number.

12000077 is a deficient number, since it is larger than the sum of its proper divisors (631603).

12000077 is an equidigital number, since it uses as much as digits as its factorization.

12000077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631602.

The product of its (nonzero) digits is 98, while the sum is 17.

The square root of 12000077 is about 3464.1127291126. The cubic root of 12000077 is about 228.9433381929.

Adding to 12000077 its reverse (77000021), we get a palindrome (89000098).

The spelling of 12000077 in words is "twelve million, seventy-seven", and thus it is an aban number and an uban number.