7801213 has 8 divisors (see below), whose sum is σ = 8944832. Its totient is φ = 6664896.

The previous prime is 7801207. The next prime is 7801219. The reversal of 7801213 is 3121087.

It is an interprime number because it is at equal distance from previous prime (7801207) and next prime (7801219).

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

It is not a de Polignac number, because 7801213 - 2¹⁷ = 7670141 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 (7801219) 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, 706 + ... + 4012.

It is an arithmetic number, because the mean of its divisors is an integer number (1118104).

Almost surely, 2^7801213 is an apocalyptic number.

It is an amenable number.

7801213 is a deficient number, since it is larger than the sum of its proper divisors (1143619).

7801213 is a wasteful number, since it uses less digits than its factorization.

7801213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3651.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 7801213 is about 2793.0651621471. The cubic root of 7801213 is about 198.3295281304.

The spelling of 7801213 in words is "seven million, eight hundred one thousand, two hundred thirteen".