61622407 has 8 divisors (see below), whose sum is σ = 76828032. Its totient is φ = 48017400.

The previous prime is 61622381. The next prime is 61622413. The reversal of 61622407 is 70422616.

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 61622407 - 2¹⁵ = 61589639 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 (61622417) 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, 400069 + ... + 400222.

It is an arithmetic number, because the mean of its divisors is an integer number (9603504).

Almost surely, 2^61622407 is an apocalyptic number.

61622407 is a deficient number, since it is larger than the sum of its proper divisors (15205625).

61622407 is a wasteful number, since it uses less digits than its factorization.

61622407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800309.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 61622407 is about 7849.9940764309. The cubic root of 61622407 is about 394.9840446474.

The spelling of 61622407 in words is "sixty-one million, six hundred twenty-two thousand, four hundred seven".