7701421 has 8 divisors (see below), whose sum is σ = 9478784. Its totient is φ = 6093360.

The previous prime is 7701409. The next prime is 7701451. The reversal of 7701421 is 1241077.

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

It is not a de Polignac number, because 7701421 - 2¹⁵ = 7668653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7701392 and 7701401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7701451) 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, 42225 + ... + 42406.

It is an arithmetic number, because the mean of its divisors is an integer number (1184848).

Almost surely, 2^7701421 is an apocalyptic number.

It is an amenable number.

7701421 is a deficient number, since it is larger than the sum of its proper divisors (1777363).

7701421 is a wasteful number, since it uses less digits than its factorization.

7701421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84651.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 7701421 is about 2775.1434197173. The cubic root of 7701421 is about 197.4802287531.

Adding to 7701421 its reverse (1241077), we get a palindrome (8942498).

The spelling of 7701421 in words is "seven million, seven hundred one thousand, four hundred twenty-one".