45398777 has 2 divisors, whose sum is σ = 45398778. Its totient is φ = 45398776.

The previous prime is 45398761. The next prime is 45398779. The reversal of 45398777 is 77789354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45306361 + 92416 = 6731^2 + 304^2 .

It is a cyclic number.

It is not a de Polignac number, because 45398777 - 2⁴ = 45398761 is a prime.

It is a super-2 number, since 2×45398777² = 4122097906191458, which contains 22 as substring.

Together with 45398779, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45398779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22699388 + 22699389.

It is an arithmetic number, because the mean of its divisors is an integer number (22699389).

Almost surely, 2^45398777 is an apocalyptic number.

It is an amenable number.

45398777 is a deficient number, since it is larger than the sum of its proper divisors (1).

45398777 is an equidigital number, since it uses as much as digits as its factorization.

45398777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1481760, while the sum is 50.

The square root of 45398777 is about 6737.8614559814. The cubic root of 45398777 is about 356.7369140854.

The spelling of 45398777 in words is "forty-five million, three hundred ninety-eight thousand, seven hundred seventy-seven".