9561377 has 4 divisors (see below), whose sum is σ = 10927296. Its totient is φ = 8195460.

The previous prime is 9561373. The next prime is 9561379. The reversal of 9561377 is 7731659.

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 not a de Polignac number, because 9561377 - 2² = 9561373 is a prime.

It is a super-2 number, since 2×9561377² = 182839860272258, which contains 22 as substring.

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 9561377.

It is not an unprimeable number, because it can be changed into a prime (9561373) 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, 682949 + ... + 682962.

It is an arithmetic number, because the mean of its divisors is an integer number (2731824).

Almost surely, 2^9561377 is an apocalyptic number.

It is an amenable number.

9561377 is a deficient number, since it is larger than the sum of its proper divisors (1365919).

9561377 is a wasteful number, since it uses less digits than its factorization.

9561377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365918.

The product of its digits is 39690, while the sum is 38.

The square root of 9561377 is about 3092.1476355439. The cubic root of 9561377 is about 212.2463094813.

The spelling of 9561377 in words is "nine million, five hundred sixty-one thousand, three hundred seventy-seven".