3969503490 has 16 divisors (see below), whose sum is σ = 9526808448. Its totient is φ = 1058534256.

The previous prime is 3969503401. The next prime is 3969503609. The reversal of 3969503490 is 943059693.

It is a happy number.

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, 66158362 + ... + 66158421.

It is an arithmetic number, because the mean of its divisors is an integer number (595425528).

Almost surely, 2^3969503490 is an apocalyptic number.

3969503490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3969503490 is an abundant number, since it is smaller than the sum of its proper divisors (5557304958).

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

3969503490 is a wasteful number, since it uses less digits than its factorization.

3969503490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132316793.

The product of its (nonzero) digits is 787320, while the sum is 48.

The square root of 3969503490 is about 63003.9958256617. The cubic root of 3969503490 is about 1583.3565732754.

The spelling of 3969503490 in words is "three billion, nine hundred sixty-nine million, five hundred three thousand, four hundred ninety".