9651601 has 4 divisors (see below), whose sum is σ = 10159600. Its totient is φ = 9143604.

The previous prime is 9651599. The next prime is 9651611. The reversal of 9651601 is 1061569.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9651601 - 2¹ = 9651599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9651601.

It is not an unprimeable number, because it can be changed into a prime (9651611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253971 + ... + 254008.

It is an arithmetic number, because the mean of its divisors is an integer number (2539900).

Almost surely, 2^9651601 is an apocalyptic number.

It is an amenable number.

9651601 is a deficient number, since it is larger than the sum of its proper divisors (507999).

9651601 is a wasteful number, since it uses less digits than its factorization.

9651601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507998.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 9651601 is about 3106.7025927823. The cubic root of 9651601 is about 212.9118269655.

The spelling of 9651601 in words is "nine million, six hundred fifty-one thousand, six hundred one".