61246407 has 4 divisors (see below), whose sum is σ = 81661880. Its totient is φ = 40830936.

The previous prime is 61246403. The next prime is 61246411. The reversal of 61246407 is 70464216.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (61246403) and next prime (61246411).

It is not a de Polignac number, because 61246407 - 2² = 61246403 is a prime.

It is a super-2 number, since 2×61246407² = 7502244740819298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61246403) 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, 10207732 + ... + 10207737.

It is an arithmetic number, because the mean of its divisors is an integer number (20415470).

Almost surely, 2^61246407 is an apocalyptic number.

61246407 is a deficient number, since it is larger than the sum of its proper divisors (20415473).

61246407 is a wasteful number, since it uses less digits than its factorization.

61246407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20415472.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 61246407 is about 7826.0083695330. The cubic root of 61246407 is about 394.1790501786.

The spelling of 61246407 in words is "sixty-one million, two hundred forty-six thousand, four hundred seven".