9457861 has 4 divisors (see below), whose sum is σ = 10808992. Its totient is φ = 8106732.

The previous prime is 9457859. The next prime is 9457871. The reversal of 9457861 is 1687549.

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 9457861 - 2¹ = 9457859 is a prime.

It is a super-2 number, since 2×9457861² = 178902269390642, which contains 22 as substring.

It is a Duffinian number.

9457861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9457871) 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, 675555 + ... + 675568.

It is an arithmetic number, because the mean of its divisors is an integer number (2702248).

Almost surely, 2^9457861 is an apocalyptic number.

It is an amenable number.

9457861 is a deficient number, since it is larger than the sum of its proper divisors (1351131).

9457861 is a wasteful number, since it uses less digits than its factorization.

9457861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351130.

The product of its digits is 60480, while the sum is 40.

The square root of 9457861 is about 3075.3635557443. The cubic root of 9457861 is about 211.4775687992.

The spelling of 9457861 in words is "nine million, four hundred fifty-seven thousand, eight hundred sixty-one".