761421 has 8 divisors (see below), whose sum is σ = 1019520. Its totient is φ = 505472.

The previous prime is 761417. The next prime is 761429. The reversal of 761421 is 124167.

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 761421 - 2² = 761417 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 761421.

It is not an unprimeable number, because it can be changed into a prime (761429) 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, 700 + ... + 1418.

It is an arithmetic number, because the mean of its divisors is an integer number (127440).

2⁷⁶¹⁴²¹ is an apocalyptic number.

It is an amenable number.

761421 is a deficient number, since it is larger than the sum of its proper divisors (258099).

761421 is a wasteful number, since it uses less digits than its factorization.

761421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075.

The product of its digits is 336, while the sum is 21.

The square root of 761421 is about 872.5944074998. The cubic root of 761421 is about 91.3148934778.

Adding to 761421 its reverse (124167), we get a palindrome (885588).

The spelling of 761421 in words is "seven hundred sixty-one thousand, four hundred twenty-one".