76945249 has 2 divisors, whose sum is σ = 76945250. Its totient is φ = 76945248.

The previous prime is 76945201. The next prime is 76945259. The reversal of 76945249 is 94254967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51624225 + 25321024 = 7185^2 + 5032^2 .

It is a cyclic number.

It is not a de Polignac number, because 76945249 - 2¹¹ = 76943201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76945199 and 76945208.

It is not a weakly prime, because it can be changed into another prime (76945259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38472624 + 38472625.

It is an arithmetic number, because the mean of its divisors is an integer number (38472625).

Almost surely, 2^76945249 is an apocalyptic number.

It is an amenable number.

76945249 is a deficient number, since it is larger than the sum of its proper divisors (1).

76945249 is an equidigital number, since it uses as much as digits as its factorization.

76945249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 46.

The square root of 76945249 is about 8771.8441048619. The cubic root of 76945249 is about 425.3312278312.

The spelling of 76945249 in words is "seventy-six million, nine hundred forty-five thousand, two hundred forty-nine".