690183493 has 16 divisors (see below), whose sum is σ = 771120000. Its totient is φ = 613896192.

The previous prime is 690183469. The next prime is 690183509. The reversal of 690183493 is 394381096.

It is a cyclic number.

It is not a de Polignac number, because 690183493 - 2²¹ = 688086341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690183413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142648 + ... + 147406.

It is an arithmetic number, because the mean of its divisors is an integer number (48195000).

Almost surely, 2^690183493 is an apocalyptic number.

It is an amenable number.

690183493 is a deficient number, since it is larger than the sum of its proper divisors (80936507).

690183493 is a wasteful number, since it uses less digits than its factorization.

690183493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5244.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 690183493 is about 26271.3435705142. The cubic root of 690183493 is about 883.7339160300.

The spelling of 690183493 in words is "six hundred ninety million, one hundred eighty-three thousand, four hundred ninety-three".