421137086 has 4 divisors (see below), whose sum is σ = 631705632. Its totient is φ = 210568542.

The previous prime is 421137049. The next prime is 421137089. The reversal of 421137086 is 680731124.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421137089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105284270 + ... + 105284273.

It is an arithmetic number, because the mean of its divisors is an integer number (157926408).

Almost surely, 2^421137086 is an apocalyptic number.

421137086 is a deficient number, since it is larger than the sum of its proper divisors (210568546).

421137086 is a wasteful number, since it uses less digits than its factorization.

421137086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210568545.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 421137086 is about 20521.6248382042. The cubic root of 421137086 is about 749.5624624271.

The spelling of 421137086 in words is "four hundred twenty-one million, one hundred thirty-seven thousand, eighty-six".