8457690 has 16 divisors (see below), whose sum is σ = 20298528. Its totient is φ = 2255376.

The previous prime is 8457677. The next prime is 8457727. The reversal of 8457690 is 967548.

It is a super-2 number, since 2×8457690² = 143065040272200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140932 + ... + 140991.

It is an arithmetic number, because the mean of its divisors is an integer number (1268658).

Almost surely, 2^8457690 is an apocalyptic number.

8457690 is an abundant number, since it is smaller than the sum of its proper divisors (11840838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8457690 is a wasteful number, since it uses less digits than its factorization.

8457690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281933.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 8457690 is about 2908.2107901595. The cubic root of 8457690 is about 203.7435743893.

It can be divided in two parts, 84576 and 90, that added together give a triangular number (84666 = T₄₁₁).

The spelling of 8457690 in words is "eight million, four hundred fifty-seven thousand, six hundred ninety".