709049421 has 24 divisors (see below), whose sum is σ = 1049025120. Its totient is φ = 461354400.

The previous prime is 709049417. The next prime is 709049431. The reversal of 709049421 is 124940907.

It is not a de Polignac number, because 709049421 - 2² = 709049417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709049401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66990 + ... + 76848.

It is an arithmetic number, because the mean of its divisors is an integer number (43709380).

Almost surely, 2^709049421 is an apocalyptic number.

It is an amenable number.

709049421 is a deficient number, since it is larger than the sum of its proper divisors (339975699).

709049421 is a wasteful number, since it uses less digits than its factorization.

709049421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10057 (or 10054 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 709049421 is about 26627.9819175243. The cubic root of 709049421 is about 891.7138297391.

The spelling of 709049421 in words is "seven hundred nine million, forty-nine thousand, four hundred twenty-one".