2309249477 has 2 divisors, whose sum is σ = 2309249478. Its totient is φ = 2309249476.

The previous prime is 2309249461. The next prime is 2309249483. The reversal of 2309249477 is 7749429032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1859851876 + 449397601 = 43126^2 + 21199^2 .

It is a cyclic number.

It is not a de Polignac number, because 2309249477 - 2⁴ = 2309249461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2309249177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1154624738 + 1154624739.

It is an arithmetic number, because the mean of its divisors is an integer number (1154624739).

Almost surely, 2^2309249477 is an apocalyptic number.

It is an amenable number.

2309249477 is a deficient number, since it is larger than the sum of its proper divisors (1).

2309249477 is an equidigital number, since it uses as much as digits as its factorization.

2309249477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 47.

The square root of 2309249477 is about 48054.6509403616. The cubic root of 2309249477 is about 1321.7732284667.

The spelling of 2309249477 in words is "two billion, three hundred nine million, two hundred forty-nine thousand, four hundred seventy-seven".