61922247 has 8 divisors (see below), whose sum is σ = 82713456. Its totient is φ = 41206272.

The previous prime is 61922243. The next prime is 61922249. The reversal of 61922247 is 74222916.

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

It is not a de Polignac number, because 61922247 - 2² = 61922243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61922243) 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, 16858 + ... + 20199.

It is an arithmetic number, because the mean of its divisors is an integer number (10339182).

Almost surely, 2^61922247 is an apocalyptic number.

61922247 is a deficient number, since it is larger than the sum of its proper divisors (20791209).

61922247 is a wasteful number, since it uses less digits than its factorization.

61922247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37617.

The product of its digits is 12096, while the sum is 33.

The square root of 61922247 is about 7869.0690046536. The cubic root of 61922247 is about 395.6236412483.

The spelling of 61922247 in words is "sixty-one million, nine hundred twenty-two thousand, two hundred forty-seven".