147680690 has 16 divisors (see below), whose sum is σ = 273010392. Its totient is φ = 57475584.

The previous prime is 147680671. The next prime is 147680713. The reversal of 147680690 is 96086741.

It can be written as a sum of positive squares in 4 ways, for example, as 139688761 + 7991929 = 11819^2 + 2827^2 .

It is a super-2 number, since 2×147680690² = 43619172397752200, 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, 199199 + ... + 199938.

Almost surely, 2^147680690 is an apocalyptic number.

147680690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

147680690 is a deficient number, since it is larger than the sum of its proper divisors (125329702).

147680690 is a wasteful number, since it uses less digits than its factorization.

147680690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399181.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 147680690 is about 12152.3944142708. The cubic root of 147680690 is about 528.5765649437.

The spelling of 147680690 in words is "one hundred forty-seven million, six hundred eighty thousand, six hundred ninety".