3047421 has 8 divisors (see below), whose sum is σ = 4375840. Its totient is φ = 1875312.

The previous prime is 3047419. The next prime is 3047423. The reversal of 3047421 is 1247403.

It is an interprime number because it is at equal distance from previous prime (3047419) and next prime (3047423).

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

It is not a de Polignac number, because 3047421 - 2¹ = 3047419 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 (3047423) 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, 39031 + ... + 39108.

It is an arithmetic number, because the mean of its divisors is an integer number (546980).

Almost surely, 2^3047421 is an apocalyptic number.

It is an amenable number.

3047421 is a deficient number, since it is larger than the sum of its proper divisors (1328419).

3047421 is a wasteful number, since it uses less digits than its factorization.

3047421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78155.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 3047421 is about 1745.6863979535. The cubic root of 3047421 is about 144.9809090997.

The spelling of 3047421 in words is "three million, forty-seven thousand, four hundred twenty-one".