15496997 has 2 divisors, whose sum is σ = 15496998. Its totient is φ = 15496996.

The previous prime is 15496973. The next prime is 15497003. The reversal of 15496997 is 79969451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15413476 + 83521 = 3926^2 + 289^2 .

It is a cyclic number.

It is not a de Polignac number, because 15496997 - 2¹⁰ = 15495973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15496937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7748498 + 7748499.

It is an arithmetic number, because the mean of its divisors is an integer number (7748499).

Almost surely, 2^15496997 is an apocalyptic number.

It is an amenable number.

15496997 is a deficient number, since it is larger than the sum of its proper divisors (1).

15496997 is an equidigital number, since it uses as much as digits as its factorization.

15496997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 612360, while the sum is 50.

The square root of 15496997 is about 3936.6225371503. The cubic root of 15496997 is about 249.3154445797.

The spelling of 15496997 in words is "fifteen million, four hundred ninety-six thousand, nine hundred ninety-seven".