9976537 has 2 divisors, whose sum is σ = 9976538. Its totient is φ = 9976536.

The previous prime is 9976529. The next prime is 9976541. The reversal of 9976537 is 7356799.

9976537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8156736 + 1819801 = 2856^2 + 1349^2 .

It is an emirp because it is prime and its reverse (7356799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9976537 - 2³ = 9976529 is a prime.

It is not a weakly prime, because it can be changed into another prime (9976037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4988268 + 4988269.

It is an arithmetic number, because the mean of its divisors is an integer number (4988269).

Almost surely, 2^9976537 is an apocalyptic number.

It is an amenable number.

9976537 is a deficient number, since it is larger than the sum of its proper divisors (1).

9976537 is an equidigital number, since it uses as much as digits as its factorization.

9976537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 357210, while the sum is 46.

The square root of 9976537 is about 3158.5656554835. The cubic root of 9976537 is about 215.2748387115.

It can be divided in two parts, 99 and 76537, that added together give a triangular number (76636 = T₃₉₁).

The spelling of 9976537 in words is "nine million, nine hundred seventy-six thousand, five hundred thirty-seven".