980428637 has 2 divisors, whose sum is σ = 980428638. Its totient is φ = 980428636.

The previous prime is 980428583. The next prime is 980428649. The reversal of 980428637 is 736824089.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 969761881 + 10666756 = 31141^2 + 3266^2 .

It is a cyclic number.

It is not a de Polignac number, because 980428637 - 2¹² = 980424541 is a prime.

It is a super-2 number, since 2×980428637² = 1922480624499355538, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 980428591 and 980428600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (980428237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490214318 + 490214319.

It is an arithmetic number, because the mean of its divisors is an integer number (490214319).

Almost surely, 2^980428637 is an apocalyptic number.

It is an amenable number.

980428637 is a deficient number, since it is larger than the sum of its proper divisors (1).

980428637 is an equidigital number, since it uses as much as digits as its factorization.

980428637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 980428637 is about 31311.7970899148. The cubic root of 980428637 is about 993.4331836501.

The spelling of 980428637 in words is "nine hundred eighty million, four hundred twenty-eight thousand, six hundred thirty-seven".