1971472970 has 8 divisors (see below), whose sum is σ = 3548651364. Its totient is φ = 788589184.

The previous prime is 1971472939. The next prime is 1971472973. The reversal of 1971472970 is 792741791.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1828503121 + 142969849 = 42761^2 + 11957^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1971472973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98573639 + ... + 98573658.

Almost surely, 2^1971472970 is an apocalyptic number.

1971472970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1971472970 is a deficient number, since it is larger than the sum of its proper divisors (1577178394).

1971472970 is a wasteful number, since it uses less digits than its factorization.

1971472970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197147304.

The product of its (nonzero) digits is 222264, while the sum is 47.

The square root of 1971472970 is about 44401.2721664594. The cubic root of 1971472970 is about 1253.9020401913.

The spelling of 1971472970 in words is "one billion, nine hundred seventy-one million, four hundred seventy-two thousand, nine hundred seventy".