421870677 has 8 divisors (see below), whose sum is σ = 565440000. Its totient is φ = 279774240.

The previous prime is 421870667. The next prime is 421870679. The reversal of 421870677 is 776078124.

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

It is not a de Polignac number, because 421870677 - 2¹² = 421866581 is a prime.

It is a super-2 number, since 2×421870677² = 355949736224876658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421870679) 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, 367552 + ... + 368697.

It is an arithmetic number, because the mean of its divisors is an integer number (70680000).

Almost surely, 2^421870677 is an apocalyptic number.

It is an amenable number.

421870677 is a deficient number, since it is larger than the sum of its proper divisors (143569323).

421870677 is a wasteful number, since it uses less digits than its factorization.

421870677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736443.

The product of its (nonzero) digits is 131712, while the sum is 42.

The square root of 421870677 is about 20539.4906704134. The cubic root of 421870677 is about 749.9974382135.

The spelling of 421870677 in words is "four hundred twenty-one million, eight hundred seventy thousand, six hundred seventy-seven".