61862849 has 2 divisors, whose sum is σ = 61862850. Its totient is φ = 61862848.

The previous prime is 61862837. The next prime is 61862873. The reversal of 61862849 is 94826816.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61858225 + 4624 = 7865^2 + 68^2 .

It is a cyclic number.

It is not a de Polignac number, because 61862849 - 2¹⁶ = 61797313 is a prime.

It is a Chen prime.

It is equal to p_3665969 and since 61862849 and 3665969 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (61864849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30931424 + 30931425.

It is an arithmetic number, because the mean of its divisors is an integer number (30931425).

Almost surely, 2^61862849 is an apocalyptic number.

It is an amenable number.

61862849 is a deficient number, since it is larger than the sum of its proper divisors (1).

61862849 is an equidigital number, since it uses as much as digits as its factorization.

61862849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 44.

The square root of 61862849 is about 7865.2939550916. The cubic root of 61862849 is about 395.4971020697.

The spelling of 61862849 in words is "sixty-one million, eight hundred sixty-two thousand, eight hundred forty-nine".