761421489 has 8 divisors (see below), whose sum is σ = 1015864512. Its totient is φ = 507296400.

The previous prime is 761421487. The next prime is 761421539. The reversal of 761421489 is 984124167.

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

It is not a de Polignac number, because 761421489 - 2¹ = 761421487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 761421489.

It is not an unprimeable number, because it can be changed into a prime (761421481) 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, 73837 + ... + 83514.

It is an arithmetic number, because the mean of its divisors is an integer number (126983064).

Almost surely, 2^761421489 is an apocalyptic number.

It is an amenable number.

761421489 is a deficient number, since it is larger than the sum of its proper divisors (254443023).

761421489 is a wasteful number, since it uses less digits than its factorization.

761421489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158967.

The product of its digits is 96768, while the sum is 42.

The square root of 761421489 is about 27593.8668729122. The cubic root of 761421489 is about 913.1491302587.

The spelling of 761421489 in words is "seven hundred sixty-one million, four hundred twenty-one thousand, four hundred eighty-nine".