62731421 has 2 divisors, whose sum is σ = 62731422. Its totient is φ = 62731420.

The previous prime is 62731399. The next prime is 62731439. The reversal of 62731421 is 12413726.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31483321 + 31248100 = 5611^2 + 5590^2 .

It is a cyclic number.

It is not a de Polignac number, because 62731421 - 2¹⁰ = 62730397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (62731441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31365710 + 31365711.

It is an arithmetic number, because the mean of its divisors is an integer number (31365711).

Almost surely, 2^62731421 is an apocalyptic number.

It is an amenable number.

62731421 is a deficient number, since it is larger than the sum of its proper divisors (1).

62731421 is an equidigital number, since it uses as much as digits as its factorization.

62731421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 26.

The square root of 62731421 is about 7920.3169759802. The cubic root of 62731421 is about 397.3394702713.

The spelling of 62731421 in words is "sixty-two million, seven hundred thirty-one thousand, four hundred twenty-one".