420896537 has 2 divisors, whose sum is σ = 420896538. Its totient is φ = 420896536.

The previous prime is 420896507. The next prime is 420896563. The reversal of 420896537 is 735698024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 226321936 + 194574601 = 15044^2 + 13949^2 .

It is a cyclic number.

It is not a de Polignac number, because 420896537 - 2⁶ = 420896473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (420896507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210448268 + 210448269.

It is an arithmetic number, because the mean of its divisors is an integer number (210448269).

Almost surely, 2^420896537 is an apocalyptic number.

It is an amenable number.

420896537 is a deficient number, since it is larger than the sum of its proper divisors (1).

420896537 is an equidigital number, since it uses as much as digits as its factorization.

420896537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 420896537 is about 20515.7631347216. The cubic root of 420896537 is about 749.4197212253.

The spelling of 420896537 in words is "four hundred twenty million, eight hundred ninety-six thousand, five hundred thirty-seven".