8157046 has 4 divisors (see below), whose sum is σ = 12235572. Its totient is φ = 4078522.

The previous prime is 8157043. The next prime is 8157047. The reversal of 8157046 is 6407518.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×8157046² = 133074798892232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 8156999 and 8157017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8157041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2039260 + ... + 2039263.

It is an arithmetic number, because the mean of its divisors is an integer number (3058893).

Almost surely, 2^8157046 is an apocalyptic number.

8157046 is a deficient number, since it is larger than the sum of its proper divisors (4078526).

8157046 is a wasteful number, since it uses less digits than its factorization.

8157046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078525.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 8157046 is about 2856.0542711930. The cubic root of 8157046 is about 201.3002451606.

The spelling of 8157046 in words is "eight million, one hundred fifty-seven thousand, forty-six".