61622237 has 4 divisors (see below), whose sum is σ = 61688256. Its totient is φ = 61556220.

The previous prime is 61622233. The next prime is 61622273. The reversal of 61622237 is 73222616.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61622237 - 2² = 61622233 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61622233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31589 + ... + 33482.

It is an arithmetic number, because the mean of its divisors is an integer number (15422064).

Almost surely, 2^61622237 is an apocalyptic number.

It is an amenable number.

61622237 is a deficient number, since it is larger than the sum of its proper divisors (66019).

61622237 is an equidigital number, since it uses as much as digits as its factorization.

61622237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66018.

The product of its digits is 6048, while the sum is 29.

The square root of 61622237 is about 7849.9832483898. The cubic root of 61622237 is about 394.9836814281.

The spelling of 61622237 in words is "sixty-one million, six hundred twenty-two thousand, two hundred thirty-seven".