1988000537 has 2 divisors, whose sum is σ = 1988000538. Its totient is φ = 1988000536.

The previous prime is 1988000461. The next prime is 1988000543. The reversal of 1988000537 is 7350008891.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1735222336 + 252778201 = 41656^2 + 15899^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1988000537 is a prime.

It is a super-2 number, since 2×1988000537² = 7904292270224576738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1988000494 and 1988000503.

It is not a weakly prime, because it can be changed into another prime (1988000557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 994000268 + 994000269.

It is an arithmetic number, because the mean of its divisors is an integer number (994000269).

Almost surely, 2^1988000537 is an apocalyptic number.

It is an amenable number.

1988000537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1988000537 is an equidigital number, since it uses as much as digits as its factorization.

1988000537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 1988000537 is about 44586.9996411510. Note that the first 3 decimals coincide. The cubic root of 1988000537 is about 1257.3962644607.

The spelling of 1988000537 in words is "one billion, nine hundred eighty-eight million, five hundred thirty-seven", and thus it is an aban number.