61267899 has 32 divisors (see below), whose sum is σ = 104348160. Its totient is φ = 31046400.

The previous prime is 61267853. The next prime is 61267903. The reversal of 61267899 is 99876216.

It is not a de Polignac number, because 61267899 - 2⁷ = 61267771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61267849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6237 + ... + 12705.

It is an arithmetic number, because the mean of its divisors is an integer number (3260880).

Almost surely, 2^61267899 is an apocalyptic number.

61267899 is a deficient number, since it is larger than the sum of its proper divisors (43080261).

61267899 is a wasteful number, since it uses less digits than its factorization.

61267899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6531.

The product of its digits is 326592, while the sum is 48.

The square root of 61267899 is about 7827.3813628825. The cubic root of 61267899 is about 394.2251519600.

The spelling of 61267899 in words is "sixty-one million, two hundred sixty-seven thousand, eight hundred ninety-nine".