421054073 has 4 divisors (see below), whose sum is σ = 459331728. Its totient is φ = 382776420.

The previous prime is 421054033. The next prime is 421054093. The reversal of 421054073 is 370450124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 421054073 - 2¹² = 421049977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421054033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19138811 + ... + 19138832.

It is an arithmetic number, because the mean of its divisors is an integer number (114832932).

Almost surely, 2^421054073 is an apocalyptic number.

It is an amenable number.

421054073 is a deficient number, since it is larger than the sum of its proper divisors (38277655).

421054073 is a wasteful number, since it uses less digits than its factorization.

421054073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38277654.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 421054073 is about 20519.6021647594. The cubic root of 421054073 is about 749.5132088549.

The spelling of 421054073 in words is "four hundred twenty-one million, fifty-four thousand, seventy-three".