1690507627 has 4 divisors (see below), whose sum is σ = 1691751096. Its totient is φ = 1689264160.

The previous prime is 1690507607. The next prime is 1690507631. The reversal of 1690507627 is 7267050961.

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

It is a cyclic number.

It is not a de Polignac number, because 1690507627 - 2⁷ = 1690507499 is a prime.

It is a super-2 number, since 2×1690507627² = 5715632073890342258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1690507607) 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, 619693 + ... + 622414.

It is an arithmetic number, because the mean of its divisors is an integer number (422937774).

Almost surely, 2^1690507627 is an apocalyptic number.

1690507627 is a deficient number, since it is larger than the sum of its proper divisors (1243469).

1690507627 is a wasteful number, since it uses less digits than its factorization.

1690507627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243468.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 1690507627 is about 41115.7831860224. The cubic root of 1690507627 is about 1191.2576744065.

The spelling of 1690507627 in words is "one billion, six hundred ninety million, five hundred seven thousand, six hundred twenty-seven".