1457620487 has 4 divisors (see below), whose sum is σ = 1461797400. Its totient is φ = 1453443576.

The previous prime is 1457620459. The next prime is 1457620501. The reversal of 1457620487 is 7840267541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1457620487 - 2¹⁰ = 1457619463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1457620427) 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, 2087933 + ... + 2088630.

It is an arithmetic number, because the mean of its divisors is an integer number (365449350).

Almost surely, 2^1457620487 is an apocalyptic number.

1457620487 is a deficient number, since it is larger than the sum of its proper divisors (4176913).

1457620487 is an equidigital number, since it uses as much as digits as its factorization.

1457620487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4176912.

The product of its (nonzero) digits is 376320, while the sum is 44.

The square root of 1457620487 is about 38178.7963010884. The cubic root of 1457620487 is about 1133.8305502735.

The spelling of 1457620487 in words is "one billion, four hundred fifty-seven million, six hundred twenty thousand, four hundred eighty-seven".