7561406 has 8 divisors (see below), whose sum is σ = 11485920. Its totient is φ = 3732768.

The previous prime is 7561397. The next prime is 7561409. The reversal of 7561406 is 6041657.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7561409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23771 + ... + 24086.

It is an arithmetic number, because the mean of its divisors is an integer number (1435740).

Almost surely, 2^7561406 is an apocalyptic number.

7561406 is a deficient number, since it is larger than the sum of its proper divisors (3924514).

7561406 is a wasteful number, since it uses less digits than its factorization.

7561406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47938.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 7561406 is about 2749.8010837150. The cubic root of 7561406 is about 196.2761448392.

The spelling of 7561406 in words is "seven million, five hundred sixty-one thousand, four hundred six".