61764049 has 2 divisors, whose sum is σ = 61764050. Its totient is φ = 61764048.

The previous prime is 61764023. The next prime is 61764061. The reversal of 61764049 is 94046716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47018449 + 14745600 = 6857^2 + 3840^2 .

It is a cyclic number.

It is not a de Polignac number, because 61764049 - 2¹³ = 61755857 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 61763999 and 61764017.

It is not a weakly prime, because it can be changed into another prime (61764149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30882024 + 30882025.

It is an arithmetic number, because the mean of its divisors is an integer number (30882025).

Almost surely, 2^61764049 is an apocalyptic number.

It is an amenable number.

61764049 is a deficient number, since it is larger than the sum of its proper divisors (1).

61764049 is an equidigital number, since it uses as much as digits as its factorization.

61764049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 61764049 is about 7859.0106883755. The cubic root of 61764049 is about 395.2864428731.

The spelling of 61764049 in words is "sixty-one million, seven hundred sixty-four thousand, forty-nine".