1406989237 has 2 divisors, whose sum is σ = 1406989238. Its totient is φ = 1406989236.

The previous prime is 1406989211. The next prime is 1406989249. The reversal of 1406989237 is 7329896041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1112489316 + 294499921 = 33354^2 + 17161^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406989237 - 2¹⁵ = 1406956469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1406989267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703494618 + 703494619.

It is an arithmetic number, because the mean of its divisors is an integer number (703494619).

Almost surely, 2^1406989237 is an apocalyptic number.

It is an amenable number.

1406989237 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406989237 is an equidigital number, since it uses as much as digits as its factorization.

1406989237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 1406989237 is about 37509.8551983342. The cubic root of 1406989237 is about 1120.5474675208.

The spelling of 1406989237 in words is "one billion, four hundred six million, nine hundred eighty-nine thousand, two hundred thirty-seven".