1023379947 has 8 divisors (see below), whose sum is σ = 1516118480. Its totient is φ = 682253280.

The previous prime is 1023379937. The next prime is 1023379949. The reversal of 1023379947 is 7499733201.

It is not a de Polignac number, because 1023379947 - 2⁶ = 1023379883 is a prime.

It is a super-3 number, since 3×1023379947³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023379949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18951454 + ... + 18951507.

It is an arithmetic number, because the mean of its divisors is an integer number (189514810).

Almost surely, 2^1023379947 is an apocalyptic number.

1023379947 is a deficient number, since it is larger than the sum of its proper divisors (492738533).

1023379947 is an equidigital number, since it uses as much as digits as its factorization.

1023379947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37902970 (or 37902964 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 1023379947 is about 31990.3102048105. The cubic root of 1023379947 is about 1007.7333566969.

The spelling of 1023379947 in words is "one billion, twenty-three million, three hundred seventy-nine thousand, nine hundred forty-seven".