61939633 has 8 divisors (see below), whose sum is σ = 70917120. Its totient is φ = 52994400.

The previous prime is 61939627. The next prime is 61939711. The reversal of 61939633 is 33693916.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61939633 - 2⁹ = 61939121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61939613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3793 + ... + 11758.

It is an arithmetic number, because the mean of its divisors is an integer number (8864640).

Almost surely, 2^61939633 is an apocalyptic number.

It is an amenable number.

61939633 is a deficient number, since it is larger than the sum of its proper divisors (8977487).

61939633 is a wasteful number, since it uses less digits than its factorization.

61939633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16127.

The product of its digits is 78732, while the sum is 40.

The square root of 61939633 is about 7870.1736321380. The cubic root of 61939633 is about 395.6606643932.

The spelling of 61939633 in words is "sixty-one million, nine hundred thirty-nine thousand, six hundred thirty-three".