7420761 has 8 divisors (see below), whose sum is σ = 10993760. Its totient is φ = 4947156.

The previous prime is 7420753. The next prime is 7420769. The reversal of 7420761 is 1670247.

It is an interprime number because it is at equal distance from previous prime (7420753) and next prime (7420769).

It is not a de Polignac number, because 7420761 - 2³ = 7420753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 274843 = 7420761 / (7 + 4 + 2 + 0 + 7 + 6 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7420769) 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 7 ways as a sum of consecutive naturals, for example, 137395 + ... + 137448.

It is an arithmetic number, because the mean of its divisors is an integer number (1374220).

Almost surely, 2^7420761 is an apocalyptic number.

It is an amenable number.

7420761 is a deficient number, since it is larger than the sum of its proper divisors (3572999).

7420761 is a wasteful number, since it uses less digits than its factorization.

7420761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274852 (or 274846 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 7420761 is about 2724.1073767383. The cubic root of 7420761 is about 195.0515839863.

The spelling of 7420761 in words is "seven million, four hundred twenty thousand, seven hundred sixty-one".