61621322 has 32 divisors (see below), whose sum is σ = 110352000. Its totient is φ = 25782624.

The previous prime is 61621303. The next prime is 61621327. The reversal of 61621322 is 22312616.

It is not an unprimeable number, because it can be changed into a prime (61621327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28454 + ... + 30542.

It is an arithmetic number, because the mean of its divisors is an integer number (3448500).

Almost surely, 2^61621322 is an apocalyptic number.

61621322 is a deficient number, since it is larger than the sum of its proper divisors (48730678).

61621322 is a wasteful number, since it uses less digits than its factorization.

61621322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155 (or 2141 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 61621322 is about 7849.9249677943. The cubic root of 61621322 is about 394.9817264419.

Adding to 61621322 its reverse (22312616), we get a palindrome (83933938).

The spelling of 61621322 in words is "sixty-one million, six hundred twenty-one thousand, three hundred twenty-two".