77001941 has 2 divisors, whose sum is σ = 77001942. Its totient is φ = 77001940.

The previous prime is 77001893. The next prime is 77001943. The reversal of 77001941 is 14910077.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71757841 + 5244100 = 8471^2 + 2290^2 .

It is a cyclic number.

It is not a de Polignac number, because 77001941 - 2¹⁸ = 76739797 is a prime.

Together with 77001943, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77001943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38500970 + 38500971.

It is an arithmetic number, because the mean of its divisors is an integer number (38500971).

Almost surely, 2^77001941 is an apocalyptic number.

It is an amenable number.

77001941 is a deficient number, since it is larger than the sum of its proper divisors (1).

77001941 is an equidigital number, since it uses as much as digits as its factorization.

77001941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 77001941 is about 8775.0749854346. The cubic root of 77001941 is about 425.4356612160.

The spelling of 77001941 in words is "seventy-seven million, one thousand, nine hundred forty-one".