1048979197 has 4 divisors (see below), whose sum is σ = 1198833376. Its totient is φ = 899125020.

The previous prime is 1048979153. The next prime is 1048979263. The reversal of 1048979197 is 7919798401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1048979197 is a prime.

It is a super-2 number, since 2×1048979197² = 2200714711477529618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1048979117) 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, 74927079 + ... + 74927092.

It is an arithmetic number, because the mean of its divisors is an integer number (299708344).

Almost surely, 2^1048979197 is an apocalyptic number.

It is an amenable number.

1048979197 is a deficient number, since it is larger than the sum of its proper divisors (149854179).

1048979197 is an equidigital number, since it uses as much as digits as its factorization.

1048979197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149854178.

The product of its (nonzero) digits is 1143072, while the sum is 55.

The square root of 1048979197 is about 32387.9483295870. The cubic root of 1048979197 is about 1016.0668720968.

The spelling of 1048979197 in words is "one billion, forty-eight million, nine hundred seventy-nine thousand, one hundred ninety-seven".