61922649 has 16 divisors (see below), whose sum is σ = 84049920. Its totient is φ = 40544400.

The previous prime is 61922639. The next prime is 61922689. The reversal of 61922649 is 94622916.

It is not a de Polignac number, because 61922649 - 2⁴ = 61922633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61922639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53224 + ... + 54374.

It is an arithmetic number, because the mean of its divisors is an integer number (5253120).

Almost surely, 2^61922649 is an apocalyptic number.

It is an amenable number.

61922649 is a deficient number, since it is larger than the sum of its proper divisors (22127271).

61922649 is a wasteful number, since it uses less digits than its factorization.

61922649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460.

The product of its digits is 46656, while the sum is 39.

The square root of 61922649 is about 7869.0945476592. The cubic root of 61922649 is about 395.6244973776.

The spelling of 61922649 in words is "sixty-one million, nine hundred twenty-two thousand, six hundred forty-nine".