1420988417 has 2 divisors, whose sum is σ = 1420988418. Its totient is φ = 1420988416.

The previous prime is 1420988411. The next prime is 1420988423. The reversal of 1420988417 is 7148890241.

It is a Cunningham number, because it is equal to 37696²+1.

It is a balanced prime because it is at equal distance from previous prime (1420988411) and next prime (1420988423).

It can be written as a sum of positive squares in only one way, i.e., 1420988416 + 1 = 37696^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420988417 - 2²⁴ = 1404211201 is a prime.

It is not a weakly prime, because it can be changed into another prime (1420988411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710494208 + 710494209.

It is an arithmetic number, because the mean of its divisors is an integer number (710494209).

Almost surely, 2^1420988417 is an apocalyptic number.

It is an amenable number.

1420988417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420988417 is an equidigital number, since it uses as much as digits as its factorization.

1420988417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 1420988417 is about 37696.0000132640. Note that the first 4 decimals coincide. The cubic root of 1420988417 is about 1124.2515956019.

The spelling of 1420988417 in words is "one billion, four hundred twenty million, nine hundred eighty-eight thousand, four hundred seventeen".