61227699 has 16 divisors (see below), whose sum is σ = 89789952. Its totient is φ = 36875808.

The previous prime is 61227623. The next prime is 61227701. The reversal of 61227699 is 99672216.

61227699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61227699 - 2¹⁷ = 61096627 is a prime.

It is a super-2 number, since 2×61227699² = 7497662249669202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61227699.

It is not an unprimeable number, because it can be changed into a prime (61227619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14869 + ... + 18534.

It is an arithmetic number, because the mean of its divisors is an integer number (5611872).

Almost surely, 2^61227699 is an apocalyptic number.

61227699 is a deficient number, since it is larger than the sum of its proper divisors (28562253).

61227699 is a wasteful number, since it uses less digits than its factorization.

61227699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33466.

The product of its digits is 81648, while the sum is 42.

The square root of 61227699 is about 7824.8130329101. The cubic root of 61227699 is about 394.1389114831.

The spelling of 61227699 in words is "sixty-one million, two hundred twenty-seven thousand, six hundred ninety-nine".