772285477 has 2 divisors, whose sum is σ = 772285478. Its totient is φ = 772285476.

The previous prime is 772285441. The next prime is 772285489. The reversal of 772285477 is 774582277.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 741527361 + 30758116 = 27231^2 + 5546^2 .

It is a cyclic number.

It is not a de Polignac number, because 772285477 - 2¹⁵ = 772252709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 772285477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (772285417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 386142738 + 386142739.

It is an arithmetic number, because the mean of its divisors is an integer number (386142739).

Almost surely, 2^772285477 is an apocalyptic number.

It is an amenable number.

772285477 is a deficient number, since it is larger than the sum of its proper divisors (1).

772285477 is an equidigital number, since it uses as much as digits as its factorization.

772285477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536640, while the sum is 49.

The square root of 772285477 is about 27790.0247750879. The cubic root of 772285477 is about 917.4715850699.

The spelling of 772285477 in words is "seven hundred seventy-two million, two hundred eighty-five thousand, four hundred seventy-seven".