7422805 has 8 divisors (see below), whose sum is σ = 9592632. Its totient is φ = 5481408.

The previous prime is 7422781. The next prime is 7422827. The reversal of 7422805 is 5082247.

7422805 = 1926² + 1927².

It can be written as a sum of positive squares in 4 ways, for example, as 463761 + 6959044 = 681^2 + 2638^2 .

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 7422805 - 2¹³ = 7414613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57034 + ... + 57163.

It is an arithmetic number, because the mean of its divisors is an integer number (1199079).

Almost surely, 2^7422805 is an apocalyptic number.

7422805 is the 1927-th centered square number.

It is an amenable number.

7422805 is a deficient number, since it is larger than the sum of its proper divisors (2169827).

7422805 is a wasteful number, since it uses less digits than its factorization.

7422805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114215.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 7422805 is about 2724.4825196723. The cubic root of 7422805 is about 195.0694909025.

The spelling of 7422805 in words is "seven million, four hundred twenty-two thousand, eight hundred five".